Tetra

Tetra's Google page holds a 4.6-star average across 196 ratings, and reading through them turns up the same story again and again: a crew lands at the house, knocks out a heat pump or mini-split install in a single day, and leaves the place cleaner than they found it. The Newton company runs HVAC replacement as an online broker — it quotes the job, lines up MassSave rebates and financing, then sends a local installer partner to do the physical work under a five-year guarantee. Max Veggeberg is CEO and Aamir Sarwar is COO, and the company describes itself as built to replace the old phone-tag-and-comparison-shopping way of buying HVAC. The mini-split and heat pump installs are what people keep coming back to describe. Reviewers write about crews finishing nine indoor heads in one house, or a compressor with four ceiling and wall units, in a single day — working late with spotlights when the job runs long. Several name specific staff who walked them through the MassSave rebate and no-interest loan paperwork, the part that seems to worry homeowners most and that they're most relieved to have handled for them. Not every job has gone that way. In a June 2025 review, a homeowner said their parents' furnace replacement left carbon monoxide venting down and in rather than outside, with no permit pulled by the city — a safety and code question worth raising directly before signing anything. Two more reviews, from late 2024 and early 2025, describe a subcontracted crew with sloppy work and no single point of contact during scheduling. Its marketing has also drawn complaints: a customer in late 2023 said a mailer upsold instead of quoting what was asked for, one in February 2026 called a mailer that referenced details about the house 'creepy,' and an April 2026 review just calls it a 'spam mail company.' Separately, a Reddit commenter has claimed Tetra recycles leads that HomeWorks Energy's own sales team couldn't close and referenced a wage-and-hour dispute — specifics that can't be checked here, but worth knowing that criticism exists outside the review platforms. The Better Business Bureau rates Tetra A+, and it holds a 4.5-star average on Thumbtack from 95 ratings, both roughly matching the Google numbers. Before booking, ask directly whether Tetra's own crew or a subcontractor is doing the install, and get the permitting and venting question answered in writing. For a straightforward heat pump or mini-split swap run through MassSave, the reviews describe a smooth, well-coordinated process — just don't skip that paperwork.