Energy-Efficient Remodeling: Traditional Builders Find a Niche Beyond Energy Code

advice, guidance, support, results

“We set out to create a niche for ourselves, and with the rate of our business growth, we must be doing something right.”

— Willie Delfs

[IMAGE: By improving the building envelope and efficiency of their client’s homes, Able Homebuilders can add space without adding to monthly utility bills. In addition to expanding the kitchen, they also replaced the windows and exterior siding.] THE DELFS’ STORY

“Able Homebuilders offers a variety of home technology features that help differentiate them from their competitors, but energy-efficient remodeling has become their most profitable niche,” says Willie Delfs.

“First and foremost, incorporating energy efficiency is the most important thing we do for our customers. There was a point when we didn’t understand this, but after we educated ourselves on the process, we saw it was so easy. There’s no reason that anybody out there shouldn’t be doing it. It doesn’t matter whether it’s remodeling or new construction, every bit of energy savings benefits your customer, your business, and the environment. Energy efficiency is an important part of our business model, and we wouldn’t go back to building the way we started.”

“We realized that there was a large remodeling niche that deserved the attention of an energy-efficient contractor. When we started out, we decided to focus on the working-class market. As our reputation grew, more affluent clients requested our services based on referrals. For the last ten years, most of our client base has come from referrals. Now we’re recognized for energy-efficient remodeling, so when someone is looking for construction services that involve energy efficiency, we’re the first company people call.”


A local utility presentation about incentive programs that help offset the cost of energy upgrades changed Able’s business strategy in 1997.

“As builders and businessmen, we thought, ‘Now here’s an edge we can have over our competitors.'” At the time, it was a very competitive market with tight profit margins. We decided that learning more about building performance would be worth it if we ended up earning a couple extra thousand dollars per job in addition to providing a better product to our clients.”

“As we began educating ourselves through the local utility’s ENERGY STAR® program, we started learning about why energy efficiency was important–how energy efficiency affects all of us. We used ENERGY STAR to create our basic requirements; as time progressed, we became so comfortable with ENERGY STAR that we committed ourselves to 100-percent participation. Then we thought, if we can build ENERGY STAR qualified homes for new construction, why not take it to our remodeling business?”

“Shortly thereafter, we joined EEBA (the Energy & Environmental Building Association), which puts on annual conferences that Jeff and I attended to expand our knowledge. In trying to target our niche, we wanted to become known as the local ‘energy guys’.”

“The main concept is that a house, whether new or remodel, is a system, and whatever you do to it affects everything else. We don’t start each day going to work to just throw sticks together and do it over again at the next project. By studying energy efficiency, we’ve become smarter builders than we were ten years ago. Ten years from now, we’ll be even smarter because as technology advances, we’ll be using it before our competition.”


“A large portion of people’s disposable income goes straight to utility companies. As a larger portion of their income gets tapped, it’s really a no-brainer for our customers to increase their home’s energy efficiency. Our goal is to be able to add space without adding energy consumption.”

“Sometimes, there is an initial hesitation from our clients. They want to know how much it’s going to cost them. We try to make them realize that the measures we’re proposing will pay them back. We’re very persistent because we think it’s important that our customers recognize both the short- and long-term benefits of energy efficiency.”

“Many of our clients don’t consider how a remodel can affect their energy use, so it’s an education process. But we don’t mind spending the extra hour explaining the benefits because it’s usually during this last hour that they decide to use us for their project. When customers learn about the benefits they hadn’t thoughtabout–the intrinsic value of the end product–it helps close the deal. Especially now that energy costs have been rising for the last few years, it’s a very easy sell.”

“People often say they don’t want to do it if it will cost more or take more time. However, incorporating efficiency into our projects doesn’t really increase the construction schedule because it’s totally integrated into the building process. Depending on the measures involved, the time difference between an energy-efficient remodel and one that’s not is minimal.”

“We probably lose about a quarter of the jobs we bid on to contractors with a lower bid, which is fine, because we’d rather focus on building our niche as opposed to worrying about jobs with minimal profit.”


“We feel that the building envelope is the most important thing to consider when remodeling or building a home. Create a good building envelope with the right combination of insulation, windows, and caulking to minimize air infiltration. Even if the existing HVAC equipment isn’t the most efficient, it will work better in an environment that is well insulated, well sealed, and has good windows. Basically, we create a good, tight building envelope to ensure that less heating and cooling will be required.”

“Often, we have to sit down and explain that an older home with less insulation and an antiquated HVAC system might have 12-15 air changes an hour. After making the building envelope tighter, air changes can be lowered to once every three hours. The customer then realizes the importance of not letting that conditioned air out. Once they understand this concept, people recognize how energy-efficient retrofits pay for themselves over time. We don’t get too technical on payback methods. We just keep it nice and simple.”

“We also try to explain that we look at the home as an interrelated system. When we make changes to that system, we have to take all the pieces into account and make sure that when we leave, the home operates better than it did before we started. There are a lot of different factors to consider. Air intake, windows, doors, solar orientation, roofing and insulation come into play. We also assess older equipment that they may not have thought of replacing. Often, we can do the addition with no extra energy costs to the client.”


“Clients appreciate that we pay attention to their monthly operating costs. It also helps from a marketing perspective because if a potential client is comparing us to another builder who doesn’t include efficiency in their list of services, then it may help us get their business.”

The crew ensures that window replacements are done properly.”In a small community like ours, people recognize certain business qualities and tell their friends about it. If we treat our customers nicely and educate them in the process, they end up selling our services for us. In the nearly 20 years we’ve been in business, we’ve never had to spend much on advertising. Instead, we’ve just always tried to give our customers a fair price and do the best job that we could, and word of mouth has promoted our business just fine.”

“About 95 percent of our work comes from referrals and repeat customers and new clients tell me that they’ve heard about what we do with energy efficiency. This is the only gauge I have, but with the rate of our business growth, we must be doing something right.”

“Being recognized as energy-efficient remodelers and builders definitely has its business advantages. We are in a very competitive market here and can only get a certain amount per square foot to incorporate energy efficiency. I’d say there’s about a 5- to 10-percent increase in profit associated with selling efficiency upgrades. Some of the efficiency upgrades involve utility incentives; the other ones we do just because it’s the right way to build.”


“There is a small learning curve, so you have to get all your employees and subcontractors on board, but once you’ve done a couple of jobs, it becomes standard protocol and you donít have to spend any more time or money on it.”

“We’re fortunate to have built great relationships and can bring the right team to each job. We have electricians, mechanical contractors, and plumbers who have been working with us for many years. They are familiar with our processes and have no problem paying attention to the specifications. Having a consistent team really helps our business run effectively. As long as we keep our clients pleased, the subcontractor’s business benefits along with ours.”

“My brother and I will attend conferences and if we see an efficiency measure we view as important, we spend a couple hours with our employees during our regular training sessions to explain the new process. We also train our team members to answer questions about the processes in the field.”


A worker inspects the plumbness of a window.There are multiple utility incentive programs for upgrading heating, air conditioning, and water heating systems. While incentives are usually larger with new construction, even in a remodeling project, homeowners can recover up to 50 percent of their efficiency investment. Typically, utility incentives apply to heating, cooling, and water heating only. In some cases, HVAC and water heating upgrades must be done as a package.

The new federal Energy Bill also gives tax credits and deductions for many of the 12-15 prescriptive measures from ENERGY STAR, which include installing high-efficiency windows; adding insulation to sidewalls, basements, or slabs; adding a programmable thermostat; using high-efficiency HVAC and water heating equipment; and installing at least three ENERGY STAR qualified appliances or lighting.

Leading the way

Let's build a better world together

Project planning

Design expertise

Great qualifications

Nullam vestibulum finibus sapien, id consequat mauris tempus auctor.


90 Newport St., Natick, MA 01760

83 Taylor Street, Kings Mountain, NC 28086

22 Birch Hill St., Villa Rica, GA 30180

Support requests

Nullam scelerisque leo felis, quis congue mauris tristique in. Suspendisse pulvinar, felis eu facilisis mattis, turpis odio luctus nisi, et ultrices velit enim quis lacus.

Request a quote

[Insert your contact form here]


Vivamus vehicula dictum elit at bibendum. Etiam finibus eros ut urna auctor ullamcorper. Sed at erat eget nisl rutrum ultrices sed eu ex.


Sign up to receive the latest news and trends from our company.

More questions? Get in touch