Our Services
Full exterior renovation services for residential and commercial properties across Massachusetts.
Roofing
Premium protection built to last.
From full tear-offs to targeted repairs, we install high-performance roofing systems that protect your home for decades. We are proud installers of GAF Timberline HDZ shingles and use only premium underlayments — including GAF StormGuard ice and water shield and GAF Deck Armor roof protection — on every job.
- GAF Timberline HDZ shingles
- GAF StormGuard ice & water shield
- GAF Deck Armor roof protection
- Full tear-off and disposal
- Chimney & step flashing
- Ridge vent installation
- Cupola rebuilds
- Residential & commercial
Siding
Built to weather New England — and look great doing it.
We install a full range of siding products to suit every home and budget. Our preferred choice is James Hardie fiber cement siding — including James Hardie Board and Batten and Clapboard profiles — for its unmatched durability, dimensional look, and low maintenance. For customers who want a natural aesthetic, we also install cedar clapboards and cedar shingles. When budget is the primary driver, we will install vinyl siding and prefer CertainTeed Monogram above other vinyl brands for its quality and warranty.
- James Hardie fiber cement siding
- James Hardie Board & Batten
- James Hardie Clapboard
- Cedar clapboards
- Cedar shingles
- CertainTeed Monogram vinyl siding
- Full removal & disposal of old siding
- House wrap & moisture barrier
- Soffit & fascia replacement
- Residential & commercial
Exterior Trim
The details that define a finished home.
Exterior trim is one of the most visible elements of your home and one of the first things to show wear. Our preferred material is Azek cellular PVC — it never rots, never needs painting, and holds its shape through decades of New England freeze-thaw cycles. In some cases, particularly on historic homes or budget-conscious projects, we work with primed pine as well. We also fabricate custom curved and built-up trim profiles in-house for complex architectural details.
- Azek cellular PVC trim (preferred)
- Primed pine trim (historic & budget)
- Crown molding — single & multi-layer
- Custom curved PVC fabrication
- Built-up cornice & frieze boards
- Rake, fascia & soffit trim
- Window & door casings
- Historic restoration trim work
Decks
Outdoor living spaces built to last a lifetime.
We build decks the right way — starting with proper ledger flashing and framing, and finishing with materials that hold up for the long haul. Our preferred decking and railing system is Azek, which offers a premium look, zero maintenance, and a lifetime warranty. Pressure treated lumber is available for customers working within tighter budget constraints.
- Azek decking & railing systems (preferred)
- Stainless steel cable railing systems
- Pressure treated decking (budget option)
- Mahogany & hardwood options
- Azek Dry Space under-deck drainage
- Custom railings & stairs
- Ledger flashing & waterproofing
- Deck rebuilds & repairs
- Permit coordination
Windows
More light, better efficiency, lasting curb appeal.
New windows are one of the highest-impact upgrades you can make to your home. Our preferred product is the Marvin Elevate series — a fiberglass exterior with a beautiful pine interior that delivers exceptional thermal performance and a premium look that vinyl simply cannot match. For budget-conscious customers, we install quality vinyl windows as well. We handle everything from the window itself through all interior and exterior trim work so the job looks complete inside and out. Window replacement in New England comes with a challenge that many contractors choose to ignore: rot. Deteriorated framing around windows is extremely common in our climate, and the easy path is to install over it and move on. We take a different approach. When our crew discovers rot during installation, we stop, assess the full extent of the damage, and walk the homeowner through exactly what we found and what it takes to fix it properly. We reframe as needed before the window is ever set. Every installation is performed by our own experienced in-house team — people who have seen these issues hundreds of times and know how to handle them correctly. We will never cover up a problem to save time.
- Marvin Elevate windows & sliders (preferred)
- Fiberglass exterior / pine interior
- Vinyl windows (budget option)
- Full window replacement
- Energy-efficient glass packages
- Interior & exterior casing
- Azek cellular PVC exterior trim
- Historic window restoration
- Residential & commercial
Additions & ADUs
Expand your home — or add a whole new one on your property.
Home additions and Accessory Dwelling Units (ADUs) are two of the most valuable investments a Massachusetts homeowner can make. Whether you are adding square footage to your existing home or building a fully independent living space on your property, Blanchflower Construction manages the entire process — from initial design coordination through final exterior finishes. Unlike contractors who limit their scope to the exterior shell, our in-house team performs all interior framing and carpentry as well. For mechanical systems, we engage a trusted network of licensed plumbing, electrical, and HVAC professionals whose work meets the same standard we hold ourselves to. We also coordinate directly with architects and engineers on your behalf, so you are not left managing multiple relationships or navigating complex approvals on your own. Our goal is to handle the heavy lifting — permitting, design coordination, construction, and inspections — so that by the time we reach completion, the only decisions remaining are the ones that should be enjoyable: appliances, finishes, and hardware. ADUs have become increasingly popular across Massachusetts as homeowners look to accommodate aging family members, generate rental income, or create flexible space that adapts to changing needs. Recent state legislation has significantly reduced the barriers to building an ADU, and we are well-positioned to help you take advantage of that opportunity.
- Home additions — full interior & exterior
- Accessory Dwelling Units (ADUs)
- In-law suites & guest cottages
- Garage & carport conversions to living space
- Interior framing & carpentry (in-house)
- Plumbing, electrical & HVAC (licensed subs)
- Architect & engineer coordination
- Roofing, siding, windows & trim
- Permit coordination
Why Blanchflower?
We hold ourselves to a higher standard on every job — from the materials we specify to the way we leave your property.
Premium Materials First
We lead with the best — James Hardie, GAF, Azek — and offer budget-conscious alternatives only when it makes sense for the customer.
Transparent Pricing
Detailed written estimates before any work begins. No surprises, no hidden costs.
Clean Job Sites
We treat your property with respect. Every job ends with a thorough cleanup and magnet sweep.
Local & Accountable
Founded in 2020 and based in Massachusetts — we stand behind our work and are always reachable.
Ready to Get Started?
Contact us today for a free, no-obligation estimate. We serve residential and commercial clients throughout Massachusetts.