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Find Ducts & vents installers and replacers in Londonderry

Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,398
)

Serving Londonderry, NH and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"We have had several Sila visits in recent months - all exceptional. VISIT 1: We had old pipes and valves that limited our dishwasher, so we had that replaced. While there, the Sila agent suggested we replace some of the attached lines and managed to streamline our hookups by removing some of the unneeded valves and connections no longer needed. VISIT 2: We similarly had a great visit and instal from David, who did a very beautiful install on our new water heater. He removed the broken unit, improved the connection design, put in improved valves and labelled each with a tag, then tagged other connections through the basement."
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+6

Response time2 days
63 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for JOYCE COOLING & HEATING INC
JOYCE COOLING & HEATING INC
4.8(
206
)

Serving Londonderry, NH and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Joyce installed the system with new duct work, zoning, dampers, new furnace, A/C, and thermostats. They knew exactly what they were doing, installing the system as described and on time. During the 4 days of installation, management dropped by to make sure it was going well. They had all the right equipment and everything went as planned. No snags. These guys are real pros. I'd recommend them to anyone. I love my new Lennox HVAC system. My home finally is finally comfortable. The new system is also whisper quiet."
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"THE CREW"
Air Conditioners

+2

Response time1 day
5 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Unique Indoor Comfort Heating & Cooling
Unique Indoor Comfort Heating & Cooling
4.5(
53
)

Serving Londonderry, NH and surrounding areas

Approved (Corporate)

In business since 1967

Free estimates

Emergency services offered

"I've used this company for a few years, beginning with an issue I had where I needed some emergency assistance with an a/c system leaking water into the house. They fixed the issue and it cost far less than I thought it would. I've also used them for a couple heating repairs, annual furnace cleaning and a/c maintenance. I am about to hire them again since the a/c system is dying and it will need replacement since it's more than 20 years old. I would highly recommend Unique Indoor Comfort to anyone in need of a good HVAC/Heating company."
Heat Pump
Mitsubishi Hyper Heat
Multiple Ductless Heat Pump Installation
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+6

Response time1 day
8 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Palmer Gas & Oil
Palmer Gas & Oil
4.6(
88
)

Serving Londonderry, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1932

Free estimates

Emergency services offered

"I have been a Palmer customer for 5 or 6 years at least. My experience with the front office and the technicians has always been great. We have always been on automatic oil fill and we have never had an issue. My most recent experience was today - we needed a service and a replacement part. The technician was very polite, experienced, knowledgeable and respectful of our time (David). He also had a more junior team member with him (Domenic) who was very respectful as well. I continue to be impressed with Palmer and will remain a customer for the foreseeable future!"
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+11

2 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Village Home Services
Village Home Services
4.8(
16
)

Serving Londonderry, NH and surrounding areas

Approved

In business since 1978

Emergency services offered

Warranties offered

"The personable owner, Tony Del Papa, came out to give us
an estimate for installing exhaust fans in our bathroom. Since we
hadn't bought the fans yet, it was helpful that he told us what to
look for and suggested a particular brand. We then ordered fans
through Lowe's.
The company was prompt with returning calls and providing a written
estimate in the mail.
Once we had an appointment with the company that was going to vent the
fans, we scheduled Village Electric to come out several days before
that day.The two workers who came out were courteous and arrived within the
hour time window we expected them. We tested out the fans and they
worked fine, but we waited until they were vented to the outside to
actually use them.
The quality of the electrical work performed was good, but we had a
couple of minor issues, which is the reason that we gave a B for
professionalism. To install the fans, the workers had to go into the attic.
They had to move some insulation from the attic floor
and did not roll it back into place when they were done, and the
insulation batting covering the attic hatch mysteriously disappeared.
 
Also, a piece of ceiling that needed to be cut out was left in the
attic instead of being discarded. Replacement of the junction box for
the master bathroom light/fan switches caused a ceramic towel bar to
partly detach from the wall.
We have used Village Electric several times before, and this is the
only time anything like this has happened. We informed
them about it and don't expect to have any future problems, so we will
use them again.
"
Response time12 hrs
Response rate96%
6 neighbors recently requested a quote
Avatar for RPM Heating & Cooling LLC
RPM Heating & Cooling LLC
5.0(
4
)

Serving Londonderry, NH and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

RPM Heating & Cooling LLC Dracut, MA, 01826 (978) 957-2728 RPM Heating & Cooling LLC is a well-known, 5-star, family-run HVAC contractor in the Dracut, MA area. Reach our team today. Heating Contractor, Heating & Cooling, Home Heating Systems, Cooling System, Affordable Heating and Cooling https://rpmheatandcool.com/

Prompt Service!
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13 neighbors recently requested a quote
Recommended by100%of homeowners
Sunrise Heating and Cooling
5.0(
5
)

Serving Londonderry, NH and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of Heating and Cooling services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

28 neighbors recently requested a quote
Recommended by40%of homeowners
Avatar for Easy A's Plumbing & Heating, LLC
Easy A's Plumbing & Heating, LLC
4.5(
3
)

Serving Londonderry, NH and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"I hired them to replace a sluggish toilet. Andrew took my call immediately and set a schedule for the next day. He came right on time and did a great job. I will definitely call them again."
Under the camp
Attic
Camp
Camp
Camp

+68

Response time1 day
Recommended by100%of homeowners
Avatar for Nobel Air Services
Nobel Air Services
New to Angi

Serving Londonderry, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

At Nobel Air Services, we believe that the secret to satisfaction is to solve your problem quickly, correctly, and affordably. We offer 24/7 emergency services to help you with those urgent matters that can’t wait until the next business day, in addition to friendly financing through Synchrony for those high, unexpected costs. We specialize in all phases of heating and cooling services, installs, repairs, maintenance, and more! It’s easy to tell when something isn’t quite right with your home, but what exactly has gone wrong can be a little trickier to figure out. If you think you may have a problem, it’s better to be safe and call a professional right away. At Nobel Air Services, we offer world-class HVAC and plumbing solutions that provide you with the solution to your property’s problems. Whether it’s a new installation, a routine repair, preventative maintenance, or anything in between, you can count on us to get the job done right the first time. Check out all the services we offer below and call -or- click to schedule a free estimate today! ***Financing is available**

17 neighbors recently requested a quote
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FAQs for ducts & vents installation and replacement projects in Londonderry, NH

Return air vents aren't required in every room, but proper placement is essential for system efficiency. According to industry standards, you'll need one return vent for every 100 to 150 square feet of living space. Ideally, each room would have its own return vent, especially larger rooms exceeding 100 square feet. 

Without adequate return airflow, your HVAC system works harder, energy costs increase, and comfort decreases. A professional assessment can determine the optimal number and placement of return vents for your specific home layout.

Signs that your home needs additional return air vents include rooms that feel consistently stuffy, noticeable temperature variations between rooms, doors that slam shut when the HVAC system operates, or unexpectedly high energy bills. Excessive dust accumulation around supply vents can also indicate inadequate return airflow. 

If you experience these issues, consulting with an HVAC professional can help determine if adding return vents would improve your system's performance.

Supply vents deliver conditioned air into your living spaces, while return air vents draw room air back to your HVAC system for reconditioning. Supply vents push treated air into rooms, while return vents pull air from rooms back toward your heating and cooling equipment. 

Both components are essential for proper air circulation and system balance. Without sufficient return capacity, your HVAC system may experience pressure imbalances that reduce efficiency and comfort.

You should inspect and clean your return air vents at least once annually, according to industry recommendations. However, homes with pets, allergy sufferers, or noticeable dust buildup may benefit from more frequent cleaning. 

Regular maintenance helps maintain good indoor air quality and ensures your HVAC system operates efficiently. Professional duct cleaning, which addresses the entire system beyond just the visible vents, is recommended every few years, depending on your home's specific conditions.

The Londonderry, NH homeowners’ guide to ducts & vents installations and replacements

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