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Typical Greater Boston range for this kind of work, from regional averages — not a quote from Jahnke Construction LLC. Use it to sanity-check bids, then get the real number in writing.
A typical single-level deck is 12×16 — about 200 sq ft.
Estimated range
$7,750 – $14,500
Typical carpentry project around $11,100
Jahnke Construction LLC is a Holden general contractor led by Fernando Jahnke. Its own site says the family-owned company handles custom homes, additions, remodeling, and residential construction across Worcester County, and identifies Fernando as the owner; it also describes the company as licensed and insured. The customer history is unusually consistent. Google, Houzz, and Angi reviews from 2022 through 2026 repeatedly describe clear planning, responsive communication, on-time work, and careful craftsmanship. Homeowners mention a French drain and basement remodel, water-infiltration repairs, egress windows, a new-construction home in Rutland, deck reinforcement, kitchen remodeling, and multiple-home projects. A 2023 reviewer said the company met the quoted schedule and price for a deck-frame reinforcement; a 2024 reviewer described buying a new-construction home in Rutland and receiving prompt post-closing work. These are older reviews, but they provide specific accounts of completed work rather than only general praise. The profile shows active Massachusetts claims for construction supervisor license CS-112456 and home-improvement contractor registration 192405 in the state registry. BuildZoom independently lists both as active and shows a 93 score plus two projects; BBB reports an A+ grade but no BBB accreditation or customer star rating. Houzz lists 10 projects, a 5.0 rating from nine reviews, and service coverage across Worcester-area towns. The site itself lists a wider service menu, including additions, custom homes, remodeling, flooring, windows, siding, drywall, and related general-contractor work. Jahnke looks best suited to homeowners planning a custom build, addition, or substantial remodel who want a single general contractor coordinating the project. Before signing, confirm the current license status and the exact scope of insurance for the planned work, get a written schedule and allowance details, and clarify which work is performed directly versus by subcontractors.
Fernando is a great builder. From the start, he was able to walk us through the design process and was very transparent about what to expect from a price, process, and timeline standpoint. Not only did he meet his timelines, but was also available anytime we had a question or concern. If he didn’t answer, he always called right back. A lot of times when people work fast, they sacrifice quality. With Fernando, it was speed and high quality. Any issues (which there weren’t many) were addressed right away. Not only was he a great facilitator, but he was a great person to work with. He took the time to talk to us and learn what we liked. He gave many good suggestions for upgrades along the way (which ended up being great decisions). All of his employees were very respectful and kind. I would highly recommend this builder.
We couldn’t be happier with Fernando and his crew. He is highly professional, communicates clearly, and does exactly what he says he will do. Fernando installed a French drain to resolve an exterior flooding issue that led to basement remodeling, and the entire process was smooth from start to finish. Budgeting, permitting, and coordination with subcontractors were all handled seamlessly. This is the best construction work I’ve experienced across any home I’ve owned. We plan to hire Fernando again next year for a home addition, and I wouldn’t hesitate to recommend him to anyone looking for reliable, high-quality construction work.
I would give them six stars if I could! I couldn’t have gotten better contractors to build my home not only did they go above and beyond when something occurred after we moved in they were efficient well mannered and sympathetic which in my book that’s really important. Not only that, but let me give the biggest thanks and shout out to his partner. For making this home, a true dream for a wife with kids. There was details in this home only a woman would think about. And in return made my life soo much easier! So much cabinet space, washer, and dryer upstairs with the bedrooms. Every room has so much closet space. the entryway, being so spacious. A master bedroom out of a magazine The list goes on!!! So if you’re looking for a contractor that values Family, most importantly know what they’re doing! And actually put love into what they’re doing. You’re at the right place.
I had a water infiltration issue in my home, and the Jahnke Construction team responded swiftly and professionally. They quickly diagnosed the root cause and carried out the repairs with efficiency and attention to detail. I’m very pleased with their work and would highly recommend them to anyone in need of reliable and expert service.
Fernando and his team are very professional. They showed up and ended the day on the schedule they gave me. He put in 3 egress windows for me. Water snuck in the egress I called and they came back the next day to put a strip over the place where water got in. No issues since. I would defiantly work with Fernando and his teach again. Thank you for a job well done Fernando and his team.
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Certified attributes are verified against the public registry. Others are the business's own statement.
Added 24 new comments, added 55 new photos, verified active license, established 4.8 rating
Historic restoration5.0
Custom woodwork4.8
Large remodels4.2
Ecological, native-plant design expertise4.9
Accessibility work4.3
Bedroom remodel4.0
Owner on-site3.7
Exterior projects4.5