Get matched with top subcontractors in Waltham, MA

NETR Inc

4.79(

Recommended by 93% of Angi customers

241 local quotes requested

For emergency services, please call 781-933-6387. N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we’ve installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers’ needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England

"Before installing a mini-split, the sales person told me that I'd need to cut down an interior shelf to a specific height. I paid a handyman $400 to do exactly what the sales person instructed. Later on, N.E.T.R. came and did the installation; however, AFTER the installation, a technician told me that they hadn't accounted for the vent opening and closing and that the shelf would need to be further cut down. As you can imagine, this type of service is rather ridiculous. If they knew that the shelf would need further cutting, they should have NOT installed the unit. I have called N.E.T.R. six (6) times in three weeks, and no one has called me back about this issue. After paying for the unit and for a handyman, it's ridiculous that I have AC that is compromised because no one with the company thought to properly measure the space so that the work by the handyman could be done once. At this point, I'd like for N.E.T.R. to take care of this for me."

Linda O on June 2025

"Before installing a mini-split, the sales person told me that I'd need to cut down an interior shelf to a specific height. I paid a handyman $400 to do exactly what the sales person instructed. Later on, N.E.T.R. came and did the installation; however, AFTER the installation, a technician told me that they hadn't accounted for the vent opening and closing and that the shelf would need to be further cut down. As you can imagine, this type of service is rather ridiculous. If they knew that the shelf would need further cutting, they should have NOT installed the unit. I have called N.E.T.R. six (6) times in three weeks, and no one has called me back about this issue. After paying for the unit and for a handyman, it's ridiculous that I have AC that is compromised because no one with the company thought to properly measure the space so that the work by the handyman could be done once. At this point, I'd like for N.E.T.R. to take care of this for me."

Linda O on June 2025

Druziako HVAC Inc

Druziako HVAC Inc

Recommended by 93% of Angi customers

92 local quotes requested

Since 1990, we’ve proudly served our community as a trusted, family-run HVAC company focused on quality, reliability, and honest service. With over three decades of experience, we specialize in the installation, replacement, and service of top heating and cooling brands including Carrier, Bryant, and Rheem. Our certified technicians take the time to size your system properly, install it the right way, and make sure you understand your new equipment. We stand behind our work with industry-leading manufacturer warranties—up to 10 years on many systems—and dependable local support you can count on long after the install is complete. Whether you need a high-efficiency furnace, central AC, heat pump, or a complete system upgrade, we deliver comfort solutions designed to last.

"Timely and very fair price"

Ken F on September 2024

"Timely and very fair price"

Ken F on September 2024

DiOrio Builders & Designers Inc

DiOrio Builders & Designers Inc

Customers say: Quality work

23 local quotes requested

59 years of experience

DiOrio Builders and Designers Inc. is a fully licensed and insured company committed to providing homeowners with the highest level of craftsmanship. Built on old fashioned values we are experienced specialists that will complete your project to exact specifications in a timely manner. Quality work is our priority while paying special attention to detail. No job is too big or too small.

"They gave a good estimate of work to be completed and contract laid everything out clearly and completely. They were well organized and had great communication. They kept the job site clean each day and the work was well done."

Melissa C on October 2025

"They gave a good estimate of work to be completed and contract laid everything out clearly and completely. They were well organized and had great communication. They kept the job site clean each day and the work was well done."

Melissa C on October 2025

Gervais Plumbing & Heating Inc

3.71(

Gervais Plumbing & Heating Inc

3.71(

Customers say: Quick response

55 local quotes requested

18 Years in Business Gervais Mechanical Service LLC is a fully licensed, local, family-run business. With more than 100 years of combined experience, we strive to bring our customers exceptional repair and installation services they can rely on. We offer turnkey solutions for both residential and commercial customers — no job is too large or complex for our expert team.

"Absolute ripoff, along with shady business practices. They were prompt and courteous, but that's about it. The technician came and had to replace a $200 part on my boiler, it took him under an hour to do the work. A simple Google search showed at least 10 places to buy the exact part, all around $200. No other parts were needed for this repair, I researched what is involved. I was charged almost $1000, including their $89 diagnostic fee just to walk in the door. So apparently it's a $600+/hour labor rate? I'm obviously in the wrong line of work. This was not an off hours emergency call either, it was a scheduled appointment in the middle of a weekday. The shadiest part of the entire thing was that on the invoice (that they email you later) they bury all the cost, it's not itemized i.e. labor vs parts cost. It just says replaced (part) = $1000. A super scummy and shady way to run a "professional" business, taking advantage of people who don't know any better. I wouldn't be surprised if they also sell used cars. Never again Gervais. You've all been warned."

Jeffrey J on January 2025

"Absolute ripoff, along with shady business practices. They were prompt and courteous, but that's about it. The technician came and had to replace a $200 part on my boiler, it took him under an hour to do the work. A simple Google search showed at least 10 places to buy the exact part, all around $200. No other parts were needed for this repair, I researched what is involved. I was charged almost $1000, including their $89 diagnostic fee just to walk in the door. So apparently it's a $600+/hour labor rate? I'm obviously in the wrong line of work. This was not an off hours emergency call either, it was a scheduled appointment in the middle of a weekday. The shadiest part of the entire thing was that on the invoice (that they email you later) they bury all the cost, it's not itemized i.e. labor vs parts cost. It just says replaced (part) = $1000. A super scummy and shady way to run a "professional" business, taking advantage of people who don't know any better. I wouldn't be surprised if they also sell used cars. Never again Gervais. You've all been warned."

Jeffrey J on January 2025

Sila Heating, Cooling, Plumbing and Electrical

Sila Heating, Cooling, Plumbing and Electrical

615 local quotes requested

36 years of experience

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Great, as always. Sila is outstanding. We have a service contract with them for our furnace and AC and they keep them in tip-top shape. And when we have an urgent or emergency situation (heating, cooling, plumbing, electrical), they're who we call."

Jonathan P on November 2025

"Great, as always. Sila is outstanding. We have a service contract with them for our furnace and AC and they keep them in tip-top shape. And when we have an urgent or emergency situation (heating, cooling, plumbing, electrical), they're who we call."

Jonathan P on November 2025

Atlantic Heating & Air Conditioning

Atlantic Heating & Air Conditioning

Customers say: Quality work

63 local quotes requested

63 years of experience

Founded in 1962, Atlantic Heating & Air Conditioning is a family owned and operated company, ready to service you in the Brookline area. We always stand by our work, and our exceptional customer service. Our long term, extremely proficient employees are ready to assist you with any Heating or Air conditioning services. Call us today!

"Very well, above and beyond the call of duty."

Karen S on January 2023

"Very well, above and beyond the call of duty."

Karen S on January 2023

Cotti-Johnson Heating-Cooling-Electrical

Cotti-Johnson Heating-Cooling-Electrical

Recommended by 90% of Angi customers

948 local quotes requested

Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.

"Happy with the work, and the customer service. Will definitely call on them for future work."

Fran P on June 2025

"Happy with the work, and the customer service. Will definitely call on them for future work."

Fran P on June 2025

Coen Construction

4.25(

Coen Construction

4.25(

Customers say: Terrific value

107 local quotes requested

14 years of experience

We are a full service residential construction and remodeling company. Our goal is to exceed all of our clients expectations through exceptional customer service and quality craftsmanship. We work with some of the best tradesmen in the industry to deliver a quality finished product. From deck and porch builds to siding and windows, we can do it all. Contact us for an estimate on your project today! Check out our instagram for photos and updates @coenconstruction

"I recently hired Coen Brothers Construction on a thorough bathroom renovation, and the outcome was outstanding. Their quality was excellent, and I am delighted with the final result. Their sub-contractors were also great and worked at the same high standards as the Coen Brothers. Although we faced some communication issues at the outset, we eventually worked through them, and it significantly improved throughout the project. They paid attention to detail; when my project manager saw me stripping the trim for reuse, they recommended buying new trim and a lumber yard to get it. And it makes a big difference having new trim with clean, sharp lines. Their tile work took longer than expected, but the miter cuts the trim cuts, and the finish is excellent. They were consistently punctual, respectful of my home, and very tidy - tidying up at the end of each day. While the project took longer than anticipated, the reasonable cost and the team's meticulous attention to detail compensated for it. Coen Brothers Construction also expertly handled all necessary permits and inspections, keeping me informed every step of the way. Overall, I am satisfied with their work and would hire them again for my next project."

Matthew W on May 2023

"I recently hired Coen Brothers Construction on a thorough bathroom renovation, and the outcome was outstanding. Their quality was excellent, and I am delighted with the final result. Their sub-contractors were also great and worked at the same high standards as the Coen Brothers. Although we faced some communication issues at the outset, we eventually worked through them, and it significantly improved throughout the project. They paid attention to detail; when my project manager saw me stripping the trim for reuse, they recommended buying new trim and a lumber yard to get it. And it makes a big difference having new trim with clean, sharp lines. Their tile work took longer than expected, but the miter cuts the trim cuts, and the finish is excellent. They were consistently punctual, respectful of my home, and very tidy - tidying up at the end of each day. While the project took longer than anticipated, the reasonable cost and the team's meticulous attention to detail compensated for it. Coen Brothers Construction also expertly handled all necessary permits and inspections, keeping me informed every step of the way. Overall, I am satisfied with their work and would hire them again for my next project."

Matthew W on May 2023

Master Bath Pros Inc

Master Bath Pros Inc

79 local quotes requested

2 years of experience

At Master Bath Pros, we pride ourselves on a decade-long journey of transforming bathrooms into spaces of comfort and elegance. Our team of experienced designers and builders work closely with you to bring your dream bathroom to life, ensuring a seamless process from design to execution. Our commitment to quality and customer satisfaction makes us a trusted name in bathroom remodeling. Master Bath Pros offers a comprehensive suite of bathroom remodeling services. From contemporary makeovers to classic renovations, we specialize in transforming your bathroom to reflect your unique style and meet your functional needs We offer bath & shower remodels, walk-in tubs, 1-day bathroom remodel, and more. Contact us for a quote!

Mouradian Plumbing & Heating

Mouradian Plumbing & Heating