
Serving Concord, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Mitch was awesome! Thank you"





Serving Concord, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Mitch was awesome! Thank you"




Serving Concord, NH and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Zach from action was great, he was very professional, friendly and efficient, and did great work. I would 100% use action again based on my experience with Zach and the quality of work."

Serving Concord, NH and surrounding areas
Approved
In business since 2007
Free estimates
Emergency services offered
"Shimon is extremely responsive, punctual, and does excellent work. Will hire again"


Serving Concord, NH and surrounding areas
Approved (Corporate)
In business since 1996
Free estimates
Warranties offered
"Just finished a visit with Foreman Doug and his crew, Devin, Sean, and Mason. Waterproofing the basement and super sound and solid work! Doug was professional and very good at keeping me in the loop with the project over the 3 day visit, and created a solid system that we are confident will keep water out of the basement forever. Above and beyond as well with problem solving when having to find solutions to fit our basement layout, all with a solid financing option/great price and 5 year warranty/ yearly inspection plan. If you are stuck with water in your basement, get Groundworks working for you ASAP!"





+16

Serving Concord, NH and surrounding areas
Approved (Corporate)
In business since 1989
Free estimates
Emergency services offered
"No invoice transparency at Sila Heating, Cooling, Plumbing, and Electrical. I had an appointment on February 16, 2026, to troubleshoot a no-heat issue on the second floor of my home. I was told the repair would be $1,500. Although hesitant, I agreed to proceed because I needed heat. The repair was completed, I paid $1,524.90, and the technician left. I later realized I had not been provided with an invoice, so I called the company directly at 781 438 4114. The person who answered the phone emailed me an invoice. The invoice listed an HVAC diagnostic fee of $69.00, followed by ?HYD 170,? with no price or itemized breakdown provided. I understand that professional services and parts can incur significant costs, it is unreasonable that the part alone could account for the entire charge without any supporting documentation. I respectfully requested a detailed breakdown of the invoice through multiple phone calls and emails; however, the responses I received were dismissive and failed "





+6

Serving Concord, NH and surrounding areas
Approved (Corporate)
In business since 1988
Free estimates
Emergency services offered
"Prompt and professional: showed up at the scheduled time, assessed the project's need and completed it quickly and thoroughly "





+16

Serving Concord, NH and surrounding areas
Approved
In business since 2010
Free estimates
Warranties offered
"I strongly caution anyone considering doing business with this company. I gave them a deposit of $4,428.65, and when I canceled a week later they kept almost $900 of it even though my service was not for another 6 weeks. You do sign a very simple, clearly stated document that says: should you cancel beyond three business days, you understand your deposit is non-refundable. Northern Basements may choose to refund depending on cancellation circumstances I fully acknowledge that I canceled a few days outside that window, but I hoped an honest company that cares about customers and referrals would choose to provide a full refund. I am a sucker for hoping that. They chose to risk my impression, referral, and review for $885.53. If nothing else comes out of this, I hope everyone reading at least goes in knowing that this statement on their contract is a real threat and your deposit is a hostage. Even Air b and bs offer full refunds on deposits within just a few days of their arrival date. 3 days to cancel with service not scheduled for 6 weeks out, Come on man. No materials were used. No service workers time was taken. The manager justified the 20% withholding as credit card fees, restocking fees, time and resources for the estimate, and administrative fees. I wholly accepted responsibility for the credit card fees and time of Paul, the gentleman who performed the assessment, and I offered to settle at 10%. I still believe any reputable company would have provided a full refund at this point in a project, or at most deduct the credit card fees because nothing more went into this beyond what would have normally been a free estimate. The further arguments the manager made for the additional fees were the scheduling of their team and the allocation of materials for my project. Complete nonsense, especially when the project was not set for 6 weeks away. Because they had my deposit hostage, they had control over how much they decided they wanted to keep, it was completely arbitrary, and they kept almost $900 of my money without providing anything. If they wanted to cover their credit card transaction fees, fine, at most 6%, but the rest is absolute robbery. The only solace I can find in this loss of almost $900 now is that I did not spend another $13,000 with them. I tried to call Paul after speaking with the manager to ask if he could do me a favor and try to reason with the manager on my behalf because he seemed nice enough. No answer. No callback. I will never seek out their services again and I will actively discourage others from doing so but, based on my experience, I expect they do not care."





+9

Serving Concord, NH and surrounding areas
Approved
In business since 1983
Emergency services offered
Credit card accepted
"Great people to work with."



Serving Concord, NH and surrounding areas
Approved
In business since 2007
Emergency services offered
Credit card accepted
"He did a great job had it done in a few hours "



Serving Concord, NH and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"They were great - arrived on time and finished the job quickly"





+11
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