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TRUSTED BY HARWINTON, CT HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon471
    Verified nest installation services reviews

Top-Rated Nest installation pros in Harwinton - Updated Nov 2026

Avatar for Valerie Spencer Interiors LLC
Valerie Spencer Interiors LLC
5.0(
90
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Harwinton, CT and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"Excellent!Brian was very professional and accurate he was knowledgeable of what I needed done.Brian ran into an issue while installing my faucet and needed to reschedule to come back and fix it he rescheduled in a timely manner even though he was very busy with other jobs Brian refused full payment until the job was complete Brian was a huge help with everything I recommend valerie Spencer interiors and Brian for all your home improvement projects I will be recommending him to all I know who need work done."
Additional Photos
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Response time1 day
1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Williams Electric Service, LLC
Williams Electric Service, LLC
4.8(
67
)
Thermostat - Install or Replace

Serving Harwinton, CT and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Phil was very personable, thorough and provided valuable feedback and advice on the projects he helped me with. They did an outstanding job. I will be hiring Williams Electric Service for all future electrical projects in my home."
New construction, garage.
1800 Amp Main
Response time1 day
Recommended by97%of homeowners
Avatar for Coldfire Mechanical, LLC
Coldfire Mechanical, LLC
5.0(
7
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Harwinton, CT and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

Coldfire Mechanical, LLC is a small business that is known for great service and superior installation at even better prices. We have a reputation for doing Whatever-It-Takes to keep you and your family comfortable and happy. \n \nToo often, consumers pay more for their products due to unnecessary overhead costs companies pass on to the consumers themselves. We do things differently. At Coldfire Mechanical, LLC, we focus on minimizing all the expenses that would require higher prices. We pass these savings — usually between 10%-20% — directly to consumers. In turn, consumers receive the highest quality products possible for the lowest price possible. Call us today, and you could save thousands of dollars! \n

Ductless split
Repairing frozen baseboard
Ductwork install
Response time10 mins
Recommended by100%of homeowners
Avatar for Supreme Electric, LLC
Supreme Electric, LLC
4.1(
122
)
Thermostat - Install or Replace

Serving Harwinton, CT and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Mike checked some outlets for me and installed a new attic fan for a reasonable price. He was on time, extremely pleasant and professional. He patiently answered questions and volunteered pertinent information. I highly recommend Supreme Electric and will be using them for any future electrical work I need to have done."
BETTER BUSINESS BUREAU RATING
Recessed and pendant lighting
Home theatre wiring and lighting
Whole house generator wiring
Generator install

+49

Response time3 hrs
Response rate94%
48 neighbors recently requested a quote
Avatar for HARP Home Services, LLC
HARP Home Services, LLC
3.7(
106
)
Thermostat - Repair or Reprogram

Serving Harwinton, CT and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"We had a split air conditioning system installed. Everyone was very professional and they were very careful to clean up everything. We will definitely call them again to replace a 40 year old boiler."
Multiple Solutions For Your Home
Available When You Need Us
Cleaner Than We Found It
Only The Best Technicians
Professional Maintenance

+29

Response time4 hrs
60 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for Luxury roofing & Design LLC
Luxury roofing & Design LLC
5.0(
20
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Harwinton, CT and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"Great attention and timely communication. Crew was talented and tackled a very unique task of transforming a 100 year old garage that was half concrete and half wood into a classy addition to my property. Owner answered all questions and addressed any concerns immediately. I highly recommend this company. No job is too big or too small"
Wilson Project
Wilson Remodel
Parker Roof Replacement
Wilson Project
Wilson Remodel

+32

Recommended by100%of homeowners
Santos Roofing and Home Improvement
5.0(
30
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Harwinton, CT and surrounding areas

"We have know and trusted SANTOS, and his team, for decades. He is a superb carpenter and knowledgeable in all areas of home building and repair. He comes up with solutions for any job, small or larger, inside or outside the home, that needs repair. He has helped my husband and I install stone columns in front of his place of business. He diligently found the leaking in our home’s roof and walls and expertly rebuilt the entire side of the kitchen and walls. I think I have a photo. There are too many jobs to list. (April 2019) My Mom has now hired SANTOS and his team to repair, sand, prime and paint her entire house and she is so happy I recommended him and now her neighbor has him booked! He’s busy but worth the wait if you can hire him."
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+9

Recommended by100%of homeowners
Avatar for Small Job Specialist Electric
Small Job Specialist Electric
4.8(
265
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Harwinton, CT and surrounding areas

In business since 1980

Free estimates

"Ken and his helper were amazing. Ken came out to recommend and quote light fixtures in our unfinished basement, connect a couple of Ring floodlights, and replace the doorbell transformer and install a new Ring doorbell at my residence. Ken's work is clean, fast, and reasonably priced! I would absolutely hire him again!"
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+9

Recommended by96%of homeowners
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Nest Installation FAQs, answered by experts

No, poison isn’t the best way to deal with animals in your attic. It’s unlikely to completely eradicate the problem, especially if you don’t take care of access points. Also, poisoned animals may die and decay in the attic, causing noxious odors. 

Some animals may leave the attic before the poison kills them, which could lead to nearby pets or other wildlife eating the animals and becoming poisoned themselves. Ultimately, it’s better to avoid using poison and contact a professional instead.

Yes, crawl spaces can attract bugs, especially since moisture tends to build up in the space, and moisture attracts pests. A good way to prevent pest infestation in your crawl space is to install a vapor barrier—called crawl space encapsulation—on the interior to seal the space, along with a French drain or some other kind of foundation drainage system outside to keep runoff out of your crawl space. You can also seal foundation cracks and repair damages to cut off access to pests.

There’s indeed no guarantee termites won’t return to your home, even after top-notch professional treatment. In areas where these hardy pests are prevalent, it can be tricky to banish them for good.

However, maintaining preventative measures, keeping a close eye out for early signs, and purchasing an ongoing professional treatment management plan can ensure you keep termites at bay and reduce the chance of any damage. Professional whole-house termite treatments can last five years or more.

Many services include pest removal as part of the repair process. Confirm with your provider.

Flea eggs can’t take heat, so use that information to your advantage. Take any affected clothes and linens and wash them on a hot setting (140℉ or higher) to kill them off. You can also rid carpets and furniture using heat. After vacuuming all surfaces thoroughly, use a steam mop or cleaner to get rid of the remaining flea eggs and residue. 

Flea eggs also can’t handle extreme cold. You could seal affected linens and store them in a freezer. 

The Harwinton, CT homeowners’ guide to nest installation services

From average costs to expert advice, get all the answers you need to get your job done.