
Serving Unionville, MD and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
"Founders Insulation did a very good job on installing insulation in ceilings! They were careful, courteous and cleaned up."





+11


Serving Unionville, MD and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
"Founders Insulation did a very good job on installing insulation in ceilings! They were careful, courteous and cleaned up."





+11

Serving Unionville, MD and surrounding areas
Approved
In business since 2009
Free estimates
Credit card accepted
"I hired Atlas Home Energy Solutions to remove old insulation and replace it with the foam technique. However, I ran into numerous unexpected problems due to a slow leak from old pipes. It took awhile to sort out. Atlas Home Energy Solutions gave me lots of expert advice. They were willing to come out and review the situation. They were also willing to reschedule and wait until another contractor dealt with the water issue and its ensuing problems. They helped me make some difficult decisions before they could insulate the crawl space. When it was ready for them to come and insulate the area they bumped their schedule forward to get it done. This company did sterling work. Their expertise and professionalism were outstanding. They really know what they are doing and guided me through a more protracted process than originally envisioned. I would highly recommend them to anyone."





+11

Serving Unionville, MD and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"On time, courteous, clean and efficient. Foamed and drywalled the garage efficiently, and cleaned up well after the job. Provided advise on issues seen during insulation preparation. Great service."





+36
Serving Unionville, MD and surrounding areas
Approved (Corporate)
Free estimates
Offers commercial services
Home contractors

Serving Unionville, MD and surrounding areas
In business since 2018
Free estimates
Warranties offered
"We had a great experience with Ridge. The salesperson was very clear about the insulation options at the outset. The removal of old insulation and installation of new was done in one day. We are very pleased."





+8

Serving Unionville, MD and surrounding areas
In business since 1979
Free estimates
"Great experience. Summit insulated our walls with foam and attic with a loosefill material. We highly recommend."





+11

Serving Unionville, MD and surrounding areas
In business since 1997
Free estimates
Credit card accepted
"We had insulation blown into our attic. Job was completed quickly and cleanly. We would recommend them to others who need the same service."
Serving Unionville, MD and surrounding areas
In business since 1986
Free estimates
Emergency services offered
"AHC, Inc did a very thorough job walking our roof and finding areas that required caulking; replacing loose nails and shingles. The technician Austin Bunnell, as a total courtesy, removed the base to an old satellite dish that was never taken down.. He then caulked that area for us. Great customer service was provided and care taken to respect the household (protective face mask and shoe covers were worn). A very good value at $149.00"





+509

Serving Unionville, MD and surrounding areas
In business since 1907
Free estimates
Credit card accepted
"Had blown in insulation for my pole barn garage and spry foam for the interior walls. Both were done well at a good price."

Serving Unionville, MD and surrounding areas
In business since 1974
Free estimates
Credit card accepted
"Person who visited was very polite and noted that what I purchased was likely not something that would meet my expectations. I wanted an energy audit, how my systems could be improved in home, lighting, heating, insulation and air conditioners. What I got was a list of things they could work on and the price to do that work. The work list in no way was considered an energy audit, rather it was a punch list of things I could do based on their visual inspection. I did not have a comparison of work and benefit/savings calculation. There was no checklist of inefficiencies and how that translated into energy losses. For example, multiple hi hat lights in house, they spoke about boxing and insulating a few, less than 10, when I have almost 90 in house. Overall I was disappointed, the tech who came said the offering needed to be better presented prior to start of work."





+14
Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.
R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.
Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.
You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.
Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.
From average costs to expert advice, get all the answers you need to get your job done.

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