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Verified record
License not state-verified. We could not confirm a current registration in the state registry. Insurance is self-reported. Look up in the official Massachusetts registry ↗
Highlights
- Second-floor addition — permits to keys handled smoothly, on time
Mellberg Construction Inc. has one detailed customer account on file: a 2025 Google review from a homeowner who hired the company as general contractor for a second-floor addition in Lexington, MA. The review describes the company managing the project end to end — from the permit application through handing over the keys — citing clear communication, timelines that were met, and attention to detail throughout. There isn't enough beyond that single account to characterize the company's broader track record, pricing, or how it handles other project types. Worth asking for references from comparable addition or remodeling projects before committing.
Read the comments
Most recent comments
- 5.0Jan 20, 2025
I had the pleasure of hiring Mellberg as the General Contractor for a second-floor addition project in Lexington, MA, and I couldn’t be happier with the results. From the very beginning, Mellberg handled everything seamlessly — from the permit application process all the way to handing over the keys. Their team’s professionalism, attention to detail, and commitment to excellence were apparent at every stage of the project. They made what could have been a stressful process incredibly practical and straightforward. Communication was clear, timelines were met, and the quality of their work was outstanding. Working with Mellberg was a fantastic experience, and I would highly recommend them to anyone looking for a reliable and efficient General Contractor. They truly made the entire process hassle-free!
— Victor LucasView on Google Reviews ↗
What does basement waterproofing cost in Greater Boston?
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Mellberg Construction Inc.. Use it to sanity-check bids, then get the real number in writing.
Not sure which you need? Start with an inspection — many reputable companies assess free, and independent assessments run up to $500.
The wall run getting the drain — a full 30×40 ft basement is about 140 ft.
Estimated range
$7,600 – $15,000
Typical waterproofing project around $11,300
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