228 E Main St
Newark, OH 43055
740-345-6639

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Local Reviews
for lancaster, oh

Rated 4.9 out of 5 stars based on 17 customer reviews

Exellent service.

reliable,professionals and always on time. Try them.

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Excellent service

Good

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Great service!

Guys did a great job, very professional. Only thing that could have been better was some floor clean up once finished.

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Exellent service.

On time and professional

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Hot water tank drain and check.

Aaron drained and checked my hot water tank. It was quick and painless and he reviewed his findings with me.

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Excellent service

Friendly, efficient, very professional. Wouldn’t use any other service!

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Great service

It was great

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Great service from Dor-Mar Tech Aaron Curry!

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Great service with the yearly maintenance

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Exceptional service

The only problem I have is my appointment was scheduled 8am-12. Didn’t show up until 3:30 and I called at 11:30 to see when they would be here

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Very good service-they go when I ask them to

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Great service with the yearly maintenance

Trent checked to make sure furnace was working properly. He was friendly and courteous

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Great service

Great service, Trent was very professional explained everything to me answered questions that I had regarding a couple items. I’m pleased with having dormer as my HVAC servicing company.

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Great Service - Quick Response

Great Service. Furnance went out and they were here same day to address the issue. Unfortunately our 27 year old furnace needed replaced but they were able to install a new one the nest day! Cody and Brandon were very courteous.

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terrific service, quick and efficient

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Job Locations
for lancaster, oh

Jayden M.

Jayden M. Job Checkin

Spring start up completed


Aaron C.

Aaron C. Job Checkin

Radon level 4.5 homeowner informed and will follow up with anymore questions


Aaron C.

Aaron C. Job Checkin

Ac looks great no issues found


DJ B.

DJ B. Job Checkin

Call customer and she would like the manager to come look at the job. Talk to Jordan he wants to to be put on tomorrow


DJ B.

DJ B. Job Checkin

Spoke to customer upon arrival. Wanted bathroom remodel roughed in. Gave estimate for rough in of bathroom. The estimate also included a new hose bib in basement for her garden. Also included new faucet for utility sink in garage. Customer paid half down with check


James B.

James B. Job Checkin

This is an estimate to do a duct cleaning


Adam G.

Adam G. Job Checkin

Changed filters 4-14x20x2 ad 2-14x25x2


Aaron C.

Aaron C. Job Checkin

Flush completed. Tp valve is dripping. Smelled gas on arrival and located leak past the ball valve unable to find with bubbles. Tank is back drafting and needs the flue pipe reworked and possible chimney liner. Old gas line looks like 3/8 and bent to reach the gas valve. Requesting follow up for plumber. Gas has been shut off to the tank.


Zach S.

Zach S. Job Checkin

Unable to reach customer to advise fill valve and fill hose are not covered. Never received drain pump.


Ben C.

Ben C. Job Checkin

Did spring start up


Aaron C.

Aaron C. Job Checkin

Completed flush also tested for radon. Levels are slightly elevated customer isn't interested in mitigation.


Aaron C.

Aaron C. Job Checkin

System working on arrival. Told cold to properly diagnose any issues r22 piston coil 46°. Requesting another appointment.


DJ B.

DJ B. Job Checkin

Return to replace expansion tank. Temperature and pressure valve. And a waterline leak. Found that water pressure going to house was 120 psi. Explain to customer that we will not be able to warranty any work done today if PRV is not put in. Customer decided to go without. Customer paid with check


Wes  F.

Wes F. Job Checkin

sold ac


Aaron C.

Aaron C. Job Checkin

Completed flush no issues found