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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon152
    Verified boiler repairs reviews

Find Boiler repair pros in Unicoi

Avatar for Wolf Mechanical

Wolf Mechanical

104 Northwood Ave
5.00(
6
)
Approved Pro

Wolf Mechanical

104 Northwood Ave
5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
70 local quotes requested

Quality work for Reasonable rates. Wolf Mechanical is a plumbing company centered on mentoring young men, teaching them essential aspects of life such as: critical thinking, a hardy work ethic, the consequences of cutting corners, negotiation, integrity, communication and so much more. We specialize in Underground, Rough-in and Finish plumbing, repairs, ground up builds and more with almost 15 years of experience in the field covering a plethora of different jobs. If we don’t know how to do a new job, Wolf Mechanical investigates the proper way and and executes it with competence. No problem is too big or small for us, we are a turn-key solution for anything you choose to throw at us.

"Great! Mike was quick at diagnosing the problem and was able to repair the leak efficiently. He was very personable and knowledgeable and we appreciated that he left the area clean and tidy. As we live in an old house, something is always going wrong and we will definitely give him a call again when the need arises."

Sandra H on September 2025

Quality work for Reasonable rates. Wolf Mechanical is a plumbing company centered on mentoring young men, teaching them essential aspects of life such as: critical thinking, a hardy work ethic, the consequences of cutting corners, negotiation, integrity, communication and so much more. We specialize in Underground, Rough-in and Finish plumbing, repairs, ground up builds and more with almost 15 years of experience in the field covering a plethora of different jobs. If we don’t know how to do a new job, Wolf Mechanical investigates the proper way and and executes it with competence. No problem is too big or small for us, we are a turn-key solution for anything you choose to throw at us.

"Great! Mike was quick at diagnosing the problem and was able to repair the leak efficiently. He was very personable and knowledgeable and we appreciated that he left the area clean and tidy. As we live in an old house, something is always going wrong and we will definitely give him a call again when the need arises."

Sandra H on September 2025


Avatar for Universal Property Improvements

Universal Property Improvements

106 Broad Street Suite 3
New on AngiNew on Angi
Approved Pro

Universal Property Improvements

106 Broad Street Suite 3
New on AngiNew on Angi
Approved Pro
35 local quotes requested
Free onsite estimate

We specialize in electrical and gas services, repairs, installs, troubleshooting, lighting, panel upgrades, ceiling fans, EV/Electric Charging Stations, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

We specialize in electrical and gas services, repairs, installs, troubleshooting, lighting, panel upgrades, ceiling fans, EV/Electric Charging Stations, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!


Avatar for Holston Home

Holston Home

5829 Old Jonesboro Road
5.00(
12
)
Approved Pro

Holston Home

5829 Old Jonesboro Road
5.00(
12
)
Approved Pro
10 local quotes requested
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"Right on time, great service and price. A+"

Jimmy T on July 2025

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"Right on time, great service and price. A+"

Jimmy T on July 2025


Unionjack Plumbing Services and Repair

306 Rheatown Road
4.75(
67
)
Approved Pro

Unionjack Plumbing Services and Repair

306 Rheatown Road
4.75(
67
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
20 years of experience

Unionjack Plumbing Services and Repair, ( Your new and used fluid movement specialists) is a locally owned and family operated business. We specialize in both residential and commercial plumbing of all phases. We provide our customers in the Tri-Cities and the surrounding counties, with the very best plumbing solutions that are both efficient and affordable. No matter what your issue may be, big or small, you can trust that we'll have a solution for you. Don't just take our word for it. Check out what our customers are saying! and remember as Paul Revere once said

"Prompt with replies and on time the day of service."

Mark K on July 2022

Unionjack Plumbing Services and Repair, ( Your new and used fluid movement specialists) is a locally owned and family operated business. We specialize in both residential and commercial plumbing of all phases. We provide our customers in the Tri-Cities and the surrounding counties, with the very best plumbing solutions that are both efficient and affordable. No matter what your issue may be, big or small, you can trust that we'll have a solution for you. Don't just take our word for it. Check out what our customers are saying! and remember as Paul Revere once said

"Prompt with replies and on time the day of service."

Mark K on July 2022


"Couldn't have been happier."

Barbara H on June 2023

Pristine Window Cleaning is going above and beyond, reaching heights and expectations that others can't. Our cutting edge window cleaning system makes it easy to get a spotless shine every time. As a small business founded in the Tri-Cities, we are here to serve our neighbors.

"Couldn't have been happier."

Barbara H on June 2023


Avatar for American Foundation & Waterproofing

American Foundation & Waterproofing

1503 Old Mount Tabor Road
4.43(
63
)
Approved Pro

American Foundation & Waterproofing

1503 Old Mount Tabor Road
4.43(
63
)
Approved Pro
Customers say: Quality work
11 local quotes requested
19 years of experience

American Foundation & Waterproofing proudly serves East Tennessee, North Georgia, and West North Carolina. We are local family owned and operated and have provided expert service in structural foundation repair, basement waterproofing, floor system repair, bowing wall repair, crawl space encapsulation, and concrete leveling for more than 15 years.We are licensed and insured, and are rated A+ by the Better Business Bureau. We are members in good standing with the National Association of Home Builders, and are recognized as an Elite Contractor by Home Advisor. We do things the right way. The American way.

"They were prompt, worked hard, and explained everything. They have truly delivered us peace of mind. We never have had to worry about the state of our basement since we called them."

Ken S on April 2025

American Foundation & Waterproofing proudly serves East Tennessee, North Georgia, and West North Carolina. We are local family owned and operated and have provided expert service in structural foundation repair, basement waterproofing, floor system repair, bowing wall repair, crawl space encapsulation, and concrete leveling for more than 15 years.We are licensed and insured, and are rated A+ by the Better Business Bureau. We are members in good standing with the National Association of Home Builders, and are recognized as an Elite Contractor by Home Advisor. We do things the right way. The American way.

"They were prompt, worked hard, and explained everything. They have truly delivered us peace of mind. We never have had to worry about the state of our basement since we called them."

Ken S on April 2025


Hewson's Handymen

314 Clicktown Road
New on AngiNew on Angi
Approved Pro

Hewson's Handymen

314 Clicktown Road
New on AngiNew on Angi
Approved Pro
58 local quotes requested
2 years of experience

We bring quality work for a fair and honest price, and we have a 100% customer satisfaction guarantee if you are not happy we are not happy. We stand by our work. We also want to give back to the community so we give discounts for veterans and disabled, and seniors. We specialize in basic construction, plumbing, and landscaping.

We bring quality work for a fair and honest price, and we have a 100% customer satisfaction guarantee if you are not happy we are not happy. We stand by our work. We also want to give back to the community so we give discounts for veterans and disabled, and seniors. We specialize in basic construction, plumbing, and landscaping.


Avatar for Renfros Construction

Renfros Construction

398 Murrell Rd
No reviews yet

Renfros Construction

398 Murrell Rd
No reviews yet
2 years of experience

This business is owned and operated by a veteran. I can do just about anything when it comes to carpentry. I am very dependable. I specialize in fine finishing carpentry. This includes baseboards, crown, and trim work. I install doors, cabinets, windows, laminate and vinyl flooring.

This business is owned and operated by a veteran. I can do just about anything when it comes to carpentry. I am very dependable. I specialize in fine finishing carpentry. This includes baseboards, crown, and trim work. I install doors, cabinets, windows, laminate and vinyl flooring.


Avatar for Overbeek Plumbing and Electrical LLC

Overbeek Plumbing and Electrical LLC

763 Raytheon Rd
5.00(
4
)

Overbeek Plumbing and Electrical LLC

763 Raytheon Rd
5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Overbeek Plumbing and Electrical is extremely customer centric, friendly, hard working, responsible, and cost conscious. We service residential electrical and plumbing needs whether it's a small, quick job, or more involved project. We're a small business but that means you'll get a much more personal response as opposed to the large firms that often don't want certain types of business.

"Todd was extremely prompt with scheduling and performing the work. Job was very well done and he offered to do some additional cleanup of old wiring after completing the installation."

Travis M on April 2025

Overbeek Plumbing and Electrical is extremely customer centric, friendly, hard working, responsible, and cost conscious. We service residential electrical and plumbing needs whether it's a small, quick job, or more involved project. We're a small business but that means you'll get a much more personal response as opposed to the large firms that often don't want certain types of business.

"Todd was extremely prompt with scheduling and performing the work. Job was very well done and he offered to do some additional cleanup of old wiring after completing the installation."

Travis M on April 2025


Plumbing and piping of all systems. Water, gas, venting, and drain pipe. I will always treat you and your house with the utmost respect

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Boiler Repair questions, answered by experts

Common problems include leaks, low pressure, and inefficient heating. Regular maintenance prevents many issues.

In general, it’s a good idea to bleed air from your heaters at the start of every cold season, before you move your boiler system back into active mode. Early fall is a common time for this task. However, some heating systems don’t need much manual bleeding because of automatic bleed vents and other components.

Most HVAC service calls include diagnostic fees, which could include checking on a specific issue you’re experiencing or running through a routine inspection checklist. If you called for a particular problem, the service call will also include an estimate to fix the issue, including materials and labor. Depending on your HVAC technician and the service you requested, you might also get a general inspection of your system components to ensure everything is working as intended.

The best time to buy home heating oil is in the summer when the demand is lowest, as the prices are usually lower. However, waiting until the summer to buy is often unavoidable unless you install a separate storage tank. If you have the space for a second tank, you can expect to pay between $1,000 and $4,000 for the oil tank replacement or installation, depending on the capacity and location. You could quickly recuperate these costs, though, by stocking up on heating oil in the summer and avoiding deliveries in the winter when prices are highest.

An expansion tank must always be installed on the supply side, which is the side where the boiler sends water out to heat the systems. That placement allows the water to push against the air and condense properly as it is heated, then circulated through the system. Professional installers can recommend the best place on the supply side for an expansion tank.

The Unicoi, TN homeowners’ guide to boiler repairs

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