How soon can you start my project?
Our crew is prepared to begin working on your project as soon as we agree to the details and have signed a contract. This will ensure that we understand the expectations and agree to the details.
Servicing all of Southern California.
We want to simplify the process of using a general contractor by providing you with straightforward responses to some frequently asked questions.
Our crew is prepared to begin working on your project as soon as we agree to the details and have signed a contract. This will ensure that we understand the expectations and agree to the details.
At BEST Techs Contracting, we will create a project plan at our ﬁrst meeting that details every cost aspect of the project. Payment will be expected at various points during the project, and will be spelled out clearly in the contract to avoid surprises. Our ﬁnancial specialist can help advise you with lenders that can help you apply for home equity lines of credit if necessary.
After we discuss your ideas, we will work together to create a detailed contract and production schedule. At BEST Techs Contracting, we want to know your goals for the project, things that might concern you, and where you budget is ﬁxed. Once our crew begins to work, we keep you updated every step along the way.
We only use the highest quality, professional and skilled workers, all of whom are fully bonded and insured. In addition, they all meet licensing requirements.
All project requirements diﬀer, but we strive to use local resources as much as possible. With years of experience in the industry, we have relationships with many quality manufacturers and businesses that allow us to pass on the savings to you.
If your annual utility bills total less than about $0.80 per square foot of ﬁnished ﬂoor space per year, you’re already using less energy than the typical home. To save more it will cost you quite a bit of money compared to the potential savings. On the other hand, if your annual bills total more than about $1.50 per square foot per year, there’s deﬁnitely a potential for signiﬁcant savings with an Home Performance Contracting retroﬁt. Between those values, “It depends,” as they say. Your HPC contractor will help you ﬁgure out the economics.
The really critical diﬀerences are HPC’s reliance on:
Programs which measure results after the project is complete have not been as aﬀective as HPC, because after completion it’s too late to ﬁx (at reasonable cost) the inevitable installation problems that happen when installation crews are “ﬂying blind.” 3rd-party testing before and after a retroﬁt project is not as eﬀective as requiring the crews themselves to take responsibility for and to record and report the measured results.
Home Performance Contracting does not preclude 3rd-party testing. It can serve as a periodic audit of the eﬀectiveness of a given contractor’s crews and the integrity of their reported results. But by itself, 3rd-party testing has not been shown to ensure favorable results.
For example, since 2005 California’s Title 24 energy regulations have required air conditioning contractors to measure and validate the refrigerant charge in all new construction AC systems, as they run under load, after the installation is complete. However, Title 24 has also allowed contractors to avoid this reporting requirement if they install AC systems which have thermostatic expansion valves (TX valves) instead of systems with other types of refrigerant distribution.
TX valves are certainly an improvement in technology. But the results of this exception, popular among many contractors, are nothing to be proud of. In a ﬁeld study of 80 homes built under Title 24 between 2007 and 2009, less than 20% of the AC systems were measured as being properly charged. For that reason and others, losses in capacity (and therefore energy waste) from the 80 tested systems were between 30 and 60%. The average loss in capacity was 45%. All testing is good. But testing performed by the crews — as they work — is much better. That’s the foundation of an HPC project.
Because the comfort, annual energy consumption, safety and indoor air quality of the home are all important. And each of those aﬀects the others in complex ways that demand a clear understanding of:
That clear understanding cannot be achieved by just looking at the bills, or by strolling around outside the home. Clear understanding demands measurements. It also requires peering into nooks and crannies that normal people don’t have time to think about.
If safety, comfort and energy efﬁciency are not all addressed in a comprehensive way, bad things happen. Unexpected costs can arise after the fact. And occupant health can be compromised if the house is tightened without ensuring combustion safety and efﬁciency.
So as much as one would like to have a simpler ﬁx for energy, safety and comfort, a house is just too complex for simple, quick solutions, when you need all three of those features.
You’d certainly think so. But unfortunately, oversized units create major problems for both comfort and energy cost.
SEER stands for “Seasonal Energy Efﬁciency Ratio.” The rating number is based on tests under a carefully controlled set of conditions which do not reﬂect the realities of installation, nor the variability of daily operation. Equipment which has too much capacity is like a suit which is too big for its owner. It doesn’t ﬁt right, so it’s clumsy and does not perform well.
When cooling units are too big, they deliver intermittent blasts of large amounts of cold air. Then because they are so big, an oversized unit satisﬁes the thermostat quickly and turns oﬀ. As a result, for much of the day the occupants are either too warm or too cool. The larger the oversizing, the worse is the comfort. Also, the bigger the unit, the more energy it uses while creating that discomfort and the more noise it makes in the process.
To deliver energy efﬁciency and comfort in real homes (rather than in the carefully constrained SEER testing lab) the AC unit and all its system components must be sized and installed the way a ﬁne tailor makes a suit—ﬁtted perfectly to its purpose, and crafted with careful attention to the critical details which vary from house to house.
The SEER is not as important as how the system is designed and installed. Temperature uniformity—the evenness of temperature throughout a space—is critical to comfort and therefore to energy consumption. If the temperature is comfortable in one part of the room but not in another, people in the second location will want to adjust the thermostat to deliver more cooling. That takes extra energy. The air distribution system is not changed when only the AC unit is replaced, and that’s a problem.
The air distribution system must be included in most projects because of the critical importance of installation quality. For example, if duct connections leak air (as do most duct systems installed without measurements of leakage), then any increased efﬁciency of the new unit is wasted by that air leakage, and savings don’t occur. Likewise, if parts of the duct system are “kinked” or makes hairpin turns, the system fan must work too hard as it forces air through the system and into the rooms. There’s no reduction in fan energy use when a high efﬁciency unit is mated to a kinky duct system.
A third reason for disappointing results with unit replacement alone is duct design and return air ﬂ ow. If the current duct system delivers air at too low a velocity, little mixing occurs as the air leaves the duct. The cold air just “falls out” of the diﬀuser and you end up with a pool of cold air at the ﬂoor and hot air at about eye level. So, you turn down the thermostat to get more cooling. Also, if air is “dead-ended” because there is no return air path which allows air to get back to the system, the occupant of that room will not get an adequate amount of cooling air. That will make the occupant want to turn down the thermostat to improve comfort, using still more energy.
For all of these reasons, neither comfort nor energy savings happen automatically by simply replacing an old unit with a new unit which has a higher SEER rating. To achieve better comfort and energy savings at the same time, you need both a new, smaller AC unit, and a duct system which ensures nearly zero air or thermal leakage, and a return air system which allows air to ﬂ ow smoothly through the rooms and back to the system.
Unfortunately, unless the air sealing, insulation and HVAC system are all installed at the same time, you’re more likely to generate problems instead of improvements. For example, the foundation of energy savings is air tightness and eﬀective insulation of both the building’s enclosure and its HVAC system. But if you tighten the enclosure without making sure that combustion appliances can operate safely in a tight building, that’s a health risk. And if insulation is added in the attic before it’s sealed oﬀ from the ﬂoors below, mold can grow because humid air from indoors will rise up through cracks, gaps and holes and moisture will collect in that attic.
So, to ensure favorable results and to avoid major problems, everything must be designed as a system and installed at the same time—not over months or years.
Oversized heating units generate the same discomfort and energy waste as do oversized cooling units. It’s just that the symptoms of that failure are diﬀerent. Instead of intermittent blasts of cold air, the furnace produces blasts of hot air.
When the furnace is too big, it runs for very short periods, satisfying the thermostat quickly. But unless everything else about the house and the duct system is well-ﬁtted and air-tight, the house is too cold (or much too hot) in the spaces where the thermostat is not located. With short run-times, the system can’t mix the air evenly throughout the home, to provide comfort in all spaces. So, occupants without enough heating are complaining. They turn up the thermostat, so the home uses more energy than it should. The oversized unit and the poor duct system combine to produce an inefﬁcient system, even though the lab-tested efﬁciency rating on the furnace was impressive.
So once again, like the man who gets sold a suit which is “the next size up,” a home with an oversized heating system is less comfortable, not more so. And oversized equipment costs more to run, no matter how high its lab-tested combustion efﬁciency might be. All in all, comfort and heating costs are not controlled by combustion efﬁciency. The cost of comfort is controlled by how efﬁciently the total system can maintain temperature in the occupied spaces. And furnace efﬁciency is only a small part of that process.
It would be so pleasant if that were true. But it’s not. Ground source heat pumps are a wonderful technology—provided that they can be correctly sized for both the heating and cooling loads, and provided that they are coupled to an equally efﬁcient heating and cooling distribution system.
However, the problems begin with the idea of only replacing the existing equipment. Simple replacement of the units alone does not result in energy savings, for all the reasons discussed in answers to earlier questions in this FAQ list. One must also replace the distribution system and reduce heating & cooling loads to achieve savings.
Then there are issues of both operating and installed costs. Ground source heat pumps are not automatically more efﬁcient, but they are deﬁnitely more expensive. As an example, consider two identical homes located in Redding. As measured over a year by researchers working for the US Department of Energy, the home with the ground source heat pump used more than twice the energy used by the other home, which had a conventional “hot water furnace” with air conditioning. (A hot water furnace is an air handler which has a conventional cooling coil, plus a hot water coil connected to the domestic hot water heater.) Also, the installed conventional equipment cost less than 50% of the installed cost of the system with the ground source heat pump (U.S. DOE, 2006).
This is not to say that ground source heat pumps cannot be made to work well. It’s just that at present, they cost quite a bit to install. It’s true that their electrical compressors pump heating and cooling from the ground. But that capability does not automatically—by itself—produce energy cost savings.
That’s quite possible. Your home performance contractor will be able to tell you which programs might apply to your situation.
Deﬁnitely. When outdoor air is ﬁltered through the HVAC system rather than dragged through the walls or crawl space, the quality of the ventilation air is much improved. It will have fewer particles, and it will carry fewer of the allergens which can trigger asthma attacks.
To be clear on this point, however, an HPC retroﬁt is not a cure for asthma, nor is it a guarantee that your loved ones won’t develop asthma. But an HPC retroﬁt will improve indoor air quality.
If mold is a concern, HPC contractors are usually well-qualiﬁed to eliminate the cause of mold growth, which is always some form of excess moisture accumulation. The contractor may or may not be qualiﬁed to remove mold. Sometimes that requires a subcontractor. But HPC contractors will certainly be capable of making the repairs necessary to avoid a repeat problem.
Typical repairs include adding rain gutters, replacing windows with properly-ﬂashed units, re-grading the earth which surrounds the house, so water does not collect at the foundation or in the crawl space. If you want to know more about reducing mold risk and what it takes to accomplish that goal, consult the California Builder’s Guide to Reducing Mold Risk, which is available in PDF format at no cost, grab it here!https://masongrant.com/pdf_2008/California_Builders_Guide.pdf
Sealing the building and duct work and adding insulation would certainly save some energy. The key things to keep in mind are the safety and comfort issues. Safety ﬁrst. It’s OK to add insulation to the attic—but only after the assembly that separates the attic from the living space has been air sealed, and after the lighting which penetrates that attic has been made safe. You don’t want moisture accumulating in the attic, and you don’t want the lighting ﬁxtures to overheat and start a ﬁ re in that attic. And it’s OK to seal up the building, but after doing that, it’s critical to also check the safe operation of combustion appliances and make any necessary changes to ensure safety. You don’t want the water heater to “backdraft” (ﬂames coming out of the unit and/or toxic carbon monoxide gas ﬂooding backwards into the house). Provided you can also accommodate those safety measures in the budget, the performance contractor can certainly just air seal the attic and duct work and add insulation.
Next, comfort. After the loads are reduced by insulation and air sealing, then the existing AC and heating equipment is going to be really oversized. Some rooms will be way too hot and others way too cool. Resetting the air ﬂows to the correct values probably won’t be possible because the system and its duct work is still problematic and is simply much too big. The home probably won’t be comfortable. (It’s difﬁcult to get bulldozer to drive like a sports car).
For these reasons, air sealing and insulation are usually not proposed alone. By replacing the HVAC system with one which ﬁts the new, reduced loads, comfort is assured and the total energy savings are more substantial—usually enough to actually lower your net monthly costs, even after paying the loan to fund the larger project.
It’s a matter of safety, code compliance and resale value. Here’s the safety issue. If either substandard wiring or old can lights are covered with insulation, they can overheat and start a ﬁre. The additional insulation keeps the heat generated by the lights or poor wiring from being released into the attic air. On hot days, that heat under the insulation may be enough to ignite nearby combustible materials. Then there’s the matter of code compliance. It’s not OK to connect new equipment or new lighting ﬁxtures to wiring which is defective or substandard. Ultimately, that’s also a safety issue, in addition to a problem which will prevent resale of the house until corrected.
Certainly. There’s a lot that can be done with a small investment of money and mental energy before getting to the larger expenses. Here’s a logical sequence for a “staged” program of energy reduction, beginning with small expenditures and building towards larger projects and bigger beneﬁts, as your funds allow.
About 60% of the energy used in most homes is “baseline” energy that has little to do with the HVAC system.
Finally, keep in mind the obvious but often-forgotten reminder to everybody in the home: turn oﬀ the lights whenever you don’t need them to be on.
For the next stage, replace any can lights that penetrate the ceilings with air-tight ﬁxtures rated for full insulation contact. New ﬁxtures will allow the use of even more efﬁcient pin-base compact ﬂuorescent bulbs, and they are a necessary ﬁrst step for any later insulation. Also in stage 2, consider replacing appliances. Speciﬁcally, replace any older gas water heater with a high-efﬁciency, sealed combustion unit. This will save gas costs in the short run, and will simplify and reduce the cost of safety measures which will be necessary when the home is sealed up during a stage 3 project. Also note that the older, conventional natural draft hot water heaters don’t usually last more than 7 to 10 years in any case. So, chances are good that by replacing the unit now, you’ll avoid the disruption of a broken water heater that has to be replaced on an emergency basis later. (See note 3)
Note: Keep in mind that when replacing the water heater, it’s best to locate it close to the HVAC air handler for later synergies when the HVAC system is retroﬁtted. Also, it’s important to fully insulate the hot/cold water distribution piping. This reduces the waste of both energy and water. Insulated piping avoids the need, when showering, to run the warm water for several minutes to get rid of water which cools down in uninsulated piping.
The clothes washer and dryer are also excellent candidates for replacement if they are not already modern models. Front-loading washers spin clothes at very high speeds to remove much more rinse water before the clothes go into the dryer. Removing water by spinning is far more energy-efﬁcient than heating that same water to evaporate it in the dryer. So, you’ll save major amounts of dryer energy when you wash the clothes with a front-loading washer.
Replacing the dryer itself is also a good idea, if it does not already have a clothing moisture sensor which terminates the drying based on moisture content rather than by an arbitrary (and usually excessive) time clock setting.
The hot water heater and washer-dryer use energy in big amounts over short periods. But the long-term, low-draw appliances often use just as much energy over the long term. In particular, getting rid of any old freezers or second refrigerators is an excellent way to reduce energy at little or no cost.
Then consider replacing television sets which have either cathode ray tubes or plasma displays, and replace them with LCD or LED ﬂat panels. LCD displays typically use less than 30% of the energy of a plasma display or an old cathoderay tube TV or computer screen. Also, if the refrigerator is more than 20 years old, chances are good that a new unit will use less than half of the power consumed by that older unit. These appliance replacements (and getting rid of any plugged-in appliances not actually in use) is an excellent way to make modest reductions in energy consumption with relatively little expense. The next stage will take more time and money, but it will produce larger energy savings and also improve comfort.
The stage 3 project is where the comfort beneﬁts begin (and where the biggest reduction in energy consumption is accomplished when the project is located in the warmer parts of the State). But keep in mind that, for all the reasons described earlier in this series of questions, all three of these must be done at the same time to achieve the beneﬁts without creating problems. So, the stage 3 project will be more expensive and take more time than appliance replacement. This Best Practices Guide is focused primarily on stage 3-type projects.
The most expensive projects involve either window replacement or renewable energy systems like solar hot water heaters, or photovoltaic panels or wind turbines. These projects will save energy, and window replacement with modern triple-glazed, low-e coated, insulated-frame units will certainly improve comfort. But at current energy costs and installation costs, these projects are not likely to save enough energy to provide an attractive return on investment. So, if your budget is limited, you probably want to delay these projects until your ﬁnances allow for a low return on the relatively high installation costs of improvements.
Certainly. A Home Performance Contracting project is an excellent time to add those features to the home. After the heating and cooling loads have been reduced, you won’t need as large a solar heater or PV array. So, you’ll save money on that side of the project. Many home performance contractors are also fully qualiﬁed to design and install those features. Like window replacement, the added costs of renewable energy generation are seldom paid back by energy cost savings in a short period. But as long as that’s not a problem for your budget, by all means install renewable energy features at the same time.
Finally, if even solar is not in your current budget you might want to consider installing a pre-wiring package for future PV, or installing the pre-plumbing package that will make it easy to add solar hot water in the future. It’s relatively cheap to get the solar prep accomplished now (when you already have that highly-qualiﬁed, highly-skilled crew on site) to make it much more economical to install panels later, when the time comes for a full solar energy installation.
BEST Techs Contracting is a full service general contracting provider and we pride ourselves on delivering quality workmanship, guaranteed services and impeccable client care. Our team is comprised of only the most skilled, eﬃcient and diligent employees who are friendly and knowledgeable in all matters relating to general contracting. We have worked extremely hard in order to earn this reputation and have successfully become a leading provider within our industry. One thing that allows us to stand apart from other companies is that BEST Techs Contracting has never forgotten our humble roots or where we have come from and our goals remain the same!
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We hope the answers to these questions can help you understand the process of using a general contractor. Please contact us with any unanswered questions today. A member of our experienced staﬀ will be able to provide you with additional information. We are looking forward to serving you.