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Licensed • Insured • Trex® Pro Certified
Architectural deck designs, premium composite decking, and full-service deck installation—all from one licensed team.
Most contractors just nail boards together. As certified Trex and PVC decking specialists, we design outdoor retreats that last. By uniting licensed deck contractors, structural engineers, and architects under one roof, we eliminate the guesswork, the permit headaches, and the “will-this-look-good” anxiety. Whether you need a simple deck replacement or a multi-level composite deck with a custom pergola, you get photorealistic 3D designs before we break ground—and a finished installation that feels like an extension of your home.
Most deck builders are great with a hammer, but lost when it comes to design, materials, or permits. We’re different. We’re the only team in Framingham, MA that combines licensed architects, structural engineers, and certified TrexPro installers under one roof. That means your project moves seamlessly from 3D concept to permit approval to flawless installation, without the finger-pointing, delays, or surprise costs that plague typical construction projects.
Most deck contractors guess. We design. Our in-house architects create photorealistic 3D renderings and scaled blueprints so you can visualize every angle, railing, and step before construction begins. No surprises. No "that's not what I expected." Just confidence.
Confused by composite vs. PVC vs. cedar? So are most contractors. We're certified TrexPro installers and experts in premium PVC decking and exotic hardwoods. We don't push products, we match the perfect material to your climate, lifestyle, and budget. Low-maintenance? Fire-resistant? Pet-friendly? We'll guide you straight.
Permits denied. Structural calculations wrong. Subcontractors who don't show. Sound familiar? Not with us. We manage all permit applications, structural engineering, and daily site supervision so you don't have to take a single day off work. We deliver on time, on budget, and up to code, guaranteed.
Your deck should be as unique as your home. Whether you’re taming a sloped backyard, wrapping around a pool, or creating a screened-in sanctuary, our team has the architectural and engineering expertise to bring your vision to life. Explore our most popular custom deck styles below, then let’s design the one that’s perfect for your property.
The standard elevated deck is the most popular choice for homes with walk-out basements or gently sloped lots. It provides a functional, inviting space for dining, lounging, and entertaining.
Elevated platforms offer better views of your property. Direct access from main living areas makes indoor-outdoor flow seamless. Railings and stair options are fully customizable, and the design fits most standard lot configurations.
Multi-level decks are the ultimate solution for challenging backyards. By creating distinct zones at different heights, you can dedicate one level to dining, another to sunbathing, and a third to a hot tub or fire pit. What was once unusable terrain becomes the most talked-about feature of your property.
Multi-level designs maximize usable space on challenging lots while creating visual interest and architectural drama. Separate zones allow for dedicated dining, lounging, and entertaining areas, and the design can include built-in seating, planters, and stairs.
Wraparound decks extend around two or more sides of your home, offering multiple entry and exit points while maximizing your property’s best views. Perfect for corner lots, homes with scenic landscapes, or homeowners who want to follow the sun throughout the day.
Multiple entry and exit points make entertaining and daily use more convenient. The design follows the sun for all-day enjoyment, maximizes scenic views, and adds significant curb appeal and home value.
Pool decks demand materials that are slip-resistant, cool underfoot, and impervious to water damage. We specialize in PVC, composite, and paver materials specifically engineered for pool surrounds, so you can lounge, dive, and host summer parties without worrying about safety or durability.
Slip-resistant surfaces provide safety for family and guests. Materials stay cool underfoot even in direct sunlight. The decking is 100% waterproof and resistant to chlorine and salt, and a wide range of colors and textures allows for a customized look.
Add a roof, pergola, or full screen enclosure to your deck and enjoy your outdoor space in any weather. Whether you’re blocking the harsh summer sun, staying dry during a New England rain shower, or keeping insects at bay during mosquito season, a covered or screened-in deck extends your living space by months each year.
Protection from sun, rain, and insects keeps your deck comfortable in any season. The enclosure extends your outdoor living season by three to four months each year. Lighting, fans, and heaters can be added for additional comfort, and the investment adds significant home value.
Not every deck needs to be attached to your home. While attached decks offer seamless indoor-outdoor flow, detached decks can be built as freestanding retreats in the garden, near a pool, or at the edge of a wooded property. We can build anywhere on your property, the only limit is your imagination.
Attached decks provide seamless flow from your home to the outdoor space. Detached decks offer the flexibility to be placed anywhere on your property. Both options come with full structural engineering support and customizable materials and finishes.
Not all decks are created equal. The right material depends on your climate, lifestyle, maintenance preferences, and budget. We design and install decks ranging in material, from natural wood and eco-friendly composites to waterproof PVC, elegant stone, and ultra-durable aluminum. As certified TrexPro installers and PVC specialists, we bring manufacturer-level expertise to every material we offer. No upsells. Just honest, expert advice.
Natural Beauty. Classic Appeal. There's a reason wood remains the most popular decking choice. Cedar, redwood, and pressure-treated pine offer timeless warmth and a natural aesthetic. Best For: Homeowners who love natural aesthetics and don't mind annual maintenance. Pros: Lower upfront cost, natural appearance, easy to stain/paint, repairable. Cons: Requires annual sealing, prone to rot/warping/splinters, susceptible to insects/fading.
Lifespan: 10–15 years | Maintenance: High
Low-Maintenance. Durable. Eco-Friendly. Composite decking (like Trex and TimberTech) blends recycled wood fibers and plastic for a material that looks like wood but performs like modern engineering. Best For: Homeowners who want the look of wood without the upkeep. Pros: Low maintenance, resistant to rot/insects/splinters, eco-friendly, fade/stain resistant, wide color range. Cons: Higher upfront cost, can get hot in sun, may scratch.
Lifespan: 25–30+ years | Maintenance: Low
100% Waterproof. Ultra-Durable. Zero Maintenance. PVC decking is 100% synthetic—no wood fibers—so it's completely waterproof, impervious to moisture, and resistant to mold, mildew, and insects. Best For: Wet climates, pools, or absolute zero maintenance. Pros: 100% waterproof, no sealing/staining ever, resistant to mold/mildew/insects, consistent color. Cons: Higher cost, less natural feel, limited colors.
Lifespan: 30+ years | Maintenance: Very Low
Elegant Stone Aesthetics. Extreme Durability. Paver decks use interlocking concrete, stone, or porcelain tiles for a sophisticated, ground-level outdoor space. Durable, slip-resistant, and high-end. Best For: Ground-level patios, pools, stone aesthetic seekers. Pros: Extremely durable, slip-resistant, no rot/warping/insects, wide range of styles, can be heated. Cons: Heavy, can shift if not installed properly, cold underfoot, higher installation cost. Lifespan: 50+ years
Lifespan: 50+ years | Maintenance: Very Low
Ultimate Strength. Fire-Resistant. Modern Aesthetic. Aluminum decking is the premium choice for durability, safety, and modern aesthetics. Fire-resistant, lightweight, and impervious to rot, insects, and moisture. Best For: Wildfire-prone areas, modern architecture, commercial applications. Pros: Fire-resistant (Class A), completely rot/insect/moisture-proof, lightweight, modern look, recyclable. Cons: Highest cost, can be loud, limited colors, can dent/scratch.
Lifespan: 50+ years | Maintenance: Very Low
From your initial idea to the first barbecue, we make building a new deck simple. Here’s how our process ensures a stress-free experience.
We meet with you (on-site or virtually), listen to your vision, and take precise measurements. We’ll discuss your lifestyle, how you plan to use the space, and any must-haves (built-in seating? outdoor kitchen? fire pit?). No obligation. Just a conversation.
Our architects create photorealistic 3D renderings and scaled blueprints so you see exactly what your deck will look like. We also provide a fixed-price, line-item quote, no surprises, no “change orders” that inflate costs later.
We handle all permit applications, structural engineering calculations, and HOA approvals. We also order your premium materials (Trex, PVC, or hardwood) so they arrive on-site exactly when we need them, no delays, no backorders.
Our licensed deck contractors build your deck with precision and care. We protect your landscaping, clean up daily, and stay on schedule. Once complete, we walk you through every detail, ensuring it matches the 3D design perfectly before we hand you the keys to your new outdoor retreat.
Building a custom deck is an exciting investment. We answer your top questions about materials, permits, costs, and working with Trex® Pro Certified deck builders. If you don’t see your question here, just reach out, we’re happy to help!
Yes, in almost all cases. Under the Massachusetts State Building Code (780 CMR), a building permit is required to “construct, reconstruct, alter, repair, remove or demolish a structure” and decks are explicitly included. The only exception is for “ordinary repairs,” like replacing a few rotted floor boards. A full rebuild, new deck construction, or any deck attached to your home requires a permit.
Deck costs vary based on size, materials (wood vs. composite), and complexity (multi-level vs. ground level). We provide free, detailed quotes that break down all costs so there are no surprises.
In Massachusetts, a contractor building a deck must have two things. The first is a Home Improvement Contractor (HIC) Registration. A HIC is required by the Massachusetts Office of Consumer Affairs and Business Regulation. The second is a Construction Supervisor License (CSL). A CSL is required for structural work like building a deck.
Additional credentials to look for:
TrexPro® Certification: Indicates specialized training in composite decking installation
General liability and workers’ compensation insurance: Protects you from liability
We hold all required licenses and certifications, and we’re happy to provide proof.
For standard decks, not always. However, for complex designs, multi-level decks, or attaching to specific parts of a house, structural engineering is crucial for safety. Our in-house team includes structural expertise to ensure your deck is safe and code-compliant.
Ask for recommendations — Friends, neighbors, and local lumberyards are excellent sources
Read online reviews — Google, Yelp, and HomeAdvisor offer real customer feedback
Check credentials — Verify HIC(208969) registration, CSL(CS-118741), and insurance
Interview at least 3 contractors — Ask about experience with your preferred materials and similar projects
Visit past projects — If possible, see a deck built by the contractor
Get written estimates — Compare line-item quotes, not just bottom-line numbers
Red flags to avoid:
Bids far below the competition
No proof of license or insurance
Reluctance to pull permits
Cash-only demands or large upfront payments
Local builders understand Massachusetts building codes, local climate challenges (freeze-thaw cycles), and regional material availability. We’re also here for you long after the build if you need us.
Ask if they offer a warranty on their work. Also, check if they are certified by material manufacturers (like Trex), as these certifications require rigorous training and quality checks. We stand by our work with a full warranty and manufacturer-backed material guarantees.
The Building Department has a maximum of 30 days to issue or deny a permit. In practice, smaller projects may be approved in 1–2 weeks, while larger or more complex builds can take closer to the full 30 days. We recommend factoring permitting time into your overall project timeline and starting the process early, especially if you want your deck ready for summer.
Tip: Your contractor should pull the permit for you. We handle this as part of our full-service project management.
Massachusetts follows the International Residential Code (IRC) with specific amendments. Key requirements include:
Footing depth: At least 48 inches below grade to get below the frost line
Ledger board attachment: Must follow specific flashing and fastening methods to prevent water intrusion and structural failure
Guardrail height: Must meet IRC standards (typically 36 inches for residential decks)
Lateral load connectors: Required for decks attached to houses to resist seismic and wind forces
Note: The state recently transitioned to the 10th Edition of the Building Code (effective July 1, 2025). We stay current on all code changes so your deck passes inspection the first time.
Ready to transform your backyard? Whether you’re dreaming of a low-maintenance composite deck, a waterproof PVC pool deck, or a classic natural wood retreat, Millhawlk Design & Construction is here to build your beautiful new deck for your home.
Call or text us today at (774) 300-2972 to get started!
Licensed • Insured • Trex® Pro Certified
