7 MA ADU Designs That Get Permitted (Post-MBTA Communities Act)
Seven ADU designs that actually clear MA municipal review under MGL c.40A §3A. Each compared on cost, permit speed, and zoning compatibility.
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Pro Build Editorial
Built To Rank. Written By The Crew.
Real cost ranges from invoices we issued. 780 CMR code reality. Roof to basement, gas line to panel, kitchen to deck — the Pro Build editorial by the licensed multi-trade contractor pulling the permits across Massachusetts.
140 articles · updated weekly · one team, eight trades, one license.
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140 articles
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Real cost ranges from invoices Pro Build issued. 780 CMR code reality. Mass Save rebate math by tier. The full archive — sorted newest first, filterable by topic + format above.
Interior Paint Sheen, Room by Room
Sheen is not about looks — it's about washability and where moisture lives. Here's the finish that belongs in each room of a Massachusetts home.
7 min readRead →
10 Best Composite Decking for MA Winter (50-PSF Snow + UV Tested)
10 composite decking products tested for MA 50 PSF snow load, freeze-thaw cycling, and UV. Capped vs uncapped vs PVC — performance and cost differ.
9 min readRead →
U-Factor & SHGC for MA Windows
Every window carries an NFRC label with four numbers. Two of them — U-factor and SHGC — decide whether the window passes Massachusetts code. Here's how to read them.
8 min readRead →
Blower Door Test & ACH50 Explained
A blower door is the instrument that turns a vague "drafty house" into a hard number. Here's what CFM50 and ACH50 mean and the targets MA homes are built to.
8 min readRead →
9 Best Hardwood Floor Finishes for MA (Humidity + Pet Tested)
Nine hardwood finishes compared for MA humidity cycling (35-65% RH seasonal) and high-traffic durability. Polyurethane vs hardwax oil vs aluminum oxide UV.
8 min readRead →
7 Smart Home Upgrades That Add 4-7% to MA Home Value (Appraiser-Verified)
Seven smart home upgrades MA appraisers actually credit toward home value. ROI varies from immediate (EV charger) to long-term (smart panel).
8 min readRead →
Hardwood vs Engineered vs LVP in MA
The biggest flooring mistake in Massachusetts is putting the wrong product over the wrong subfloor. Here's how the three main types behave through MA humidity.
9 min readRead →
Deck Footing Depth & the MA Frost Line
A deck footing that stops above the frost line will heave every winter. Here's the depth Massachusetts requires and why the number is what it is.
8 min readRead →
R-Value Targets by Massachusetts Assembly
Massachusetts sits in IECC climate zones 5A and 6A, which set specific minimum R-values for every insulated assembly in a home. This is the target table by assembly.
9 min readRead →
Mass Save Rebate Stack 2026: The Decision Tree to Maximize $24K+
The actual decision tree we use to maximize the Mass Save rebate stack — $24K+ standard, $32K+ income-eligible enhanced.
13 min readRead →
200A vs 225A vs 400A Panel in MA: Heat Pump + EV + Sauna Load Math
NEC Article 220 load calc by appliance combo — when 200A suffices, when 225A or 400A is required for full electrification.
11 min readRead →
Page 4 of 12 · 140 articles total
Browse by Format
Find the Article Type You Need.
Every Pro Build article is built around one of six formats. Cost guides for budgeting, code explainers for permits, decision trees for scope choice, comparisons for system selection, FAQs for the quick answers, and playbooks for the step-by-step.
Editor's Picks
The Three Most Useful Articles This Month.
If you only read three Pro Build articles before you sign with any Massachusetts contractor, read these. Mass Save rebate stack math, the heat-pump-vs-furnace 10-year reality, and the panel sizing math that decides whether your EV + heat pump can coexist.
By Trade Silo
Latest Per Trade.
Every silo gets the most recent article surfaced here. Click the trade name to drop into the full silo of services + Mass Save rebates + code references; click the latest article to read it.
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Topic Clusters
Each trade has its own silo of articles, service guides, and Mass Save / code references. Pick the trade that matches your project — every link below leads to the full silo with services, FAQs, and rebate math.
01
HVAC & Heat Pumps
Cold-climate heat pumps, Mass Save $10K rebate math, R-32 / R-454B refrigerant transition, Manual J load calculations, ductless mini-splits.
Read HVAC →02
Roofing & Siding
Ice dam reality, when a repair beats a replacement, asphalt vs metal vs slate, gutter sizing for MA snowloads, James Hardie vs cedar.
Read Roofing →03
Construction & Remodel
Kitchen / bath remodel cost reality, ADUs under MGL c. 40A §3A, basement finishing code, in-law suites, historic home restoration.
Read Construction →04
Plumbing
Frozen pipe playbook, sewer-line camera inspections, sump pump sizing, gas-line work and Mass Plumber 248 CMR, water heaters.
Read Plumbing →05
Electrical
200-amp panel upgrade math for heat pumps + EV, knob-and-tube removal, generator transfer-switch options, MA NEC differences.
Read Electrical →06
Energy & Insulation
Mass Save HEA explained, attic vs wall insulation ROI, blower-door numbers that matter, income-eligible 100% rebate path.
Read Energy →07
Outdoor & Exterior
Deck framing for MA snow loads, window U-factor for stretch code, exterior painting prep that survives Boston winters, paving lifespan.
Read Outdoor →08
Specialty & Interior
Hardwood refinishing dust-containment, tile substrate prep, interior paint for MA humidity swings, junk removal disposal economics.
Read Specialty →Editorial Standards
How We Write
This is a contractor's blog, not a content farm. Every article goes through the same in-house standard before it's published — no exceptions, no AI shortcuts, no syndicated boilerplate.
Written by the Trade
Heat pump articles are reviewed by a Mass Save Heat Pump Contractor. Electrical articles are reviewed by a Master Electrician. No generalist staff writers.
Real Numbers Only
Cost ranges come from invoices we've actually issued. Rebate amounts cite the live Mass Save table. Code references cite 780 CMR with section numbers, not paraphrased summaries.
Updated, Not Republished
When Mass Save changes a cap or 780 CMR adopts a new edition, we update the existing article and stamp the change date. We don't republish the same content under a new headline.
Information Gain
Each article has to add something the rest of the internet doesn't. If a topic has 50 generic guides, we either bring primary data, a cost breakdown, or a code citation — or we don't publish.
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