New Custom Decks
Attached or freestanding decks, single or multi-level, sized and shaped for your yard.
- Design help & layout
- Multi-level & wraparound decks
- Built-in steps & landings
Licensed PA Deck Contractor · Based in Malvern
Custom Deck Builder in Chester & Montgomery County, PA
Boselli Renovations designs and builds custom composite, PVC and wood decks for homeowners in Chester County and Montgomery County, PA. We handle new decks, deck replacements and outdoor living upgrades, with free written estimates and one local crew from design to final walkthrough.
- PA HIC #203557
- Free, written estimates
- Locally owned in Malvern
- Service area
- Chester & Montgomery County, PA
- License
- PA HIC #203557
- Specialties
- Composite, PVC & wood decks
- Estimates
- Free, written & itemized
- Response
- Within 1 business day
Outdoor Living, Done Right
Composite & wood deck construction for Chester County and Main Line homes
Maybe it's room for the whole family at the grill. Maybe it's a quiet spot for morning coffee, or a deck that finally replaces the soft, splintered boards out back. Whatever you're picturing, we'll design a deck that fits your house, your yard and your budget.
As a Chester County deck builder, we know the local terrain: sloped lots, clay soil, and freeze-thaw cycles that are hard on footings and fasteners. We build with that in mind, so your deck stays solid and safe for years.
- Composite, PVC & pressure-treated options
- Help with township permits
- Footings set below the frost line
- Clean, finished stairs & railings
Avoid the Headaches
Common deck problems we prevent
Most bad remodeling stories come down to the same few problems. Here's how we prevent them.
Footings that heave
Shallow or undersized footings shift with Pennsylvania's freeze-thaw cycles, so decks sag and stairs pull away.
Our approach: Footings are sized for the load and set below the frost line, then checked before any framing goes up.
Rotting at the house
A poorly flashed ledger board lets water behind the siding and rots the rim joist, which is a hidden safety risk.
Our approach: Proper ledger attachment and flashing, so water is shed away from your house, not into it.
Boards that look tired fast
Cheap fasteners, tight spacing and no airflow underneath lead to cupping, staining and early rot.
Our approach: Correct fasteners, board spacing and ventilation for the decking you choose, per the manufacturer's install guide.
Deck Services
Deck building services we offer
Whether you're starting fresh or replacing a tired old deck, here's how we can help.
Deck Replacement & Resurfacing
Tear out an old deck and start fresh, or put new boards and railings on framing that's still sound.
- Full tear-off & rebuild
- New decking on sound framing
- Railing & stair replacement
Outdoor Living Upgrades
Turn your deck into the best room in the house with the right extras.
- Built-in benches & planters
- Deck lighting
- Privacy screens & pergolas
Materials & Options
Composite vs. PVC vs. pressure-treated wood: choosing your decking
Composite Decking
Low-maintenance boards from major brands that resist rot, splinters and fading. No yearly staining. Great for busy families.
Pressure-Treated Wood
A classic, budget-friendly choice. Strong and reliable, with periodic sealing to keep it looking its best.
PVC Decking
The most moisture-resistant option. Lightweight, cool underfoot, and ideal for shady or damp yards.
Railings & Stairs
Composite, aluminum, cable or wood railings, plus wide, comfortable stairs that tie the deck into your yard.
Footings & Framing
The part you don't see matters most. We pay close attention to footings, ledger attachment, flashing and fasteners.
Design & Layout
We help you plan size, shape, traffic flow and sun exposure so the deck works the way you want it to.
Local Know-How
Decks for every type of home in Chester & Montgomery County
Homes across Chester and Montgomery County range from 1800s stone farmhouses to brand-new subdivisions. Each one needs a different approach.
Older stone & brick homes
Twins, farmhouses and borough homes in Malvern, West Chester and Phoenixville often have uneven grades and tight yards.
- Custom layouts for small or sloped lots
- Railing styles that suit older homes
- Careful attachment to older framing
1970s–2000s colonials
The classic two-story colonials found across East Whiteland, Willistown, Upper Merion and Whitpain townships.
- Replace original pressure-treated decks
- Walk-out and second-story decks
- Wide stairs down to the yard
Newer & HOA communities
Townhomes and newer subdivisions in Exton, King of Prussia, Collegeville and beyond.
- Designs that meet HOA guidelines
- Low-maintenance composite & PVC
- Privacy screens for close neighbors
Project Scope
How much does a new deck cost? It depends on scope
Cost depends more on scope than anything else. Here's how projects typically break down. Your free estimate gives you exact, itemized pricing.
| Project level | What's typically included | Good fit for |
|---|---|---|
| Resurface | New decking boards and railings on existing framing that's still sound | Decks with solid structure but worn, splintered or faded boards |
| Replacement | Full tear-off and rebuild in the same footprint with new footings and framing | Older decks with rot, loose railings or failing posts |
| New custom deck | New design, footings, framing, decking, railings and stairs | Homes with no deck or that need more space |
| Outdoor living | Multi-level decks with built-in benches, lighting, pergolas or privacy screens | Families who entertain and want an outdoor room |
Ready for a deck you'll actually use?
Free on-site estimate anywhere in Chester & Montgomery County.
Permits & Inspections
Do you need a deck permit in Chester or Montgomery County?
Every township in Chester and Montgomery County has its own permit rules, from Malvern Borough and East Whiteland to Upper Merion and Lower Merion. Most attached or raised decks need a building permit and inspections, including footings, framing and a final.
We'll tell you up front whether your project needs a permit, help with the paperwork and drawings, and build to pass inspection the first time.
- Check your township's requirements during the estimate
- Prepare drawings and permit paperwork
- Schedule required inspections
- Build to code and pass inspection the first time
Design Inspiration
Modern deck design ideas
A few looks to get you thinking. Bring your own ideas to the estimate.
How It Works
How our deck building process works
Free estimate
Call or fill out the form. We'll set up a time to see your yard.
Design & proposal
We measure, sketch your deck, and give you an itemized written price.
Permits & materials
We help with township permits and order your materials.
Build & walkthrough
We build your deck, clean up the site, and walk the finished deck with you.
Service Area
Deck builder serving these Chester & Montgomery County towns
We're based in Malvern and work across Chester County and Montgomery County, PA. Don't see your town? Call us. If you're within about 30 minutes, we can probably help.
Chester County, PA
- Malvern
- Paoli
- Berwyn
- Devon
- Chesterbrook
- West Chester
- Exton
- Downingtown
- Phoenixville
- Chester Springs
- Kennett Square
- Coatesville
Montgomery County, PA
- King of Prussia
- Wayne
- Blue Bell
- Plymouth Meeting
- Conshohocken
- Collegeville
- Audubon
- Ardmore
- Bryn Mawr
- Gladwyne
- Ambler
- Lansdale
- Norristown
- Narberth
FAQ
Deck building FAQs
How much does a new deck cost in Chester County or Montgomery County?
It depends on the size, height off the ground, materials and railing style. Composite and PVC cost more up front than pressure-treated wood but need far less maintenance over time. We give every homeowner a free, itemized written estimate, so you can compare options side by side before deciding.
Should I choose composite or wood decking?
Pressure-treated wood costs less up front but needs regular cleaning and sealing. Composite and PVC cost more but resist rot, splinters and fading, and only need occasional washing. During your estimate we'll walk you through both so you can choose what fits your budget and how much upkeep you want.
Do I need a permit to build a deck in Pennsylvania?
In most cases, yes. Most Chester County and Montgomery County townships require a building permit for an attached deck or one that's raised off the ground, and the township will schedule inspections. Rules vary by township, so we'll check yours and help you through the permit process.
How long does it take to build a deck?
Most decks take a week or two of on-site work, depending on size, design and weather. Permit approval and material lead times are added on top of that. Your written proposal will include a realistic schedule.
Can you repair or resurface my existing deck instead of replacing it?
Often, yes. If the framing and footings are still sound, we can install new decking and railings for a fresh look at a lower cost. If the structure is rotted or unsafe, we'll tell you honestly and recommend a rebuild.
When is the best time to book a deck project?
Spring and summer fill up fast. Booking your estimate in fall or winter is the best way to get on the schedule early for the season. We can also build in the colder months when the ground isn't frozen.
More Services
More remodeling services in Chester & Montgomery County
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Kitchen remodeling contractor serving Malvern, West Chester, Wayne, King of Prussia and all of Chester & Montgomery County, PA.
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Bathroom Remodeling
Bathroom remodeling contractor in Malvern, PA serving Chester & Montgomery County.
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Finish Carpentry
Finish carpenter in Malvern, PA.
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Free Estimate
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Call or text(610) 802-9937 Emailbosellirenovations@gmail.comService areaChester & Montgomery County, PA
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