Cardinal Exteriors exterior project in North Deering, Portland, Maine

Deck Building in Cumberland County, Maine

New decks built from the footings up across Cumberland County and Greater Portland. Composite, PVC, pressure-treated and cedar decks with railings and stairs, priced in writing before work begins.

  • Google reviews
  • Fully licensed & insured
  • Free estimates
  • 20+ years combined experience
  • New deck construction
No obligationFree estimatesAn owner walks your home, measures, and writes a fixed price before any work begins. Request yours below.
Payment optionsFinancing availableFinancing available. Ask about payment options when you request your estimate.

New decks, not patch jobs

Cardinal Exteriors builds new decks and full deck replacements. Partners Michael McCullum and Robert Milliken lead every project: new footings, new framing, new decking, railings and stairs, built to carry Maine snow and handle freeze-thaw.

We do not do board-by-board repairs or staining. If your old deck is failing, we take it off and build it new. Planning more work on the house at the same time? We also handle siding replacement, replacement windows and roof replacement, and completed exterior work is in our project gallery.

Towns we serve. We work in 38 towns across Cumberland, York and Sagadahoc counties, from Portland and the Casco Bay islands to the Lakes Region, the Kennebunks and Bath. Each town has its own deck building page on how local houses and weather shape the job:

Deck Options

Pick the material and railing that fit your house, budget and upkeep

Composite & PVC Decking

Low-maintenance boards that will not rot or splinter and never need staining, a good fit for Maine freeze-thaw cycles.

  • Low maintenance
  • No staining
  • Rot resistant
  • Many colors

Pressure-Treated Decks

The most budget-friendly way to add outdoor living space, framed and fastened to hold up to snow load.

  • Budget-friendly
  • Strong framing
  • Paint or stain ready
  • Proven in Maine

Cedar Decks

Natural wood with a classic New England look, naturally resistant to rot and insects.

  • Natural look
  • Rot resistant
  • Classic style
  • Ages beautifully

Railings, Stairs & Landings

Composite, aluminum or wood railings, stairs and landings built to match the deck and the house.

  • Matching railings
  • Built-in stairs
  • Landings
  • Code-minded details

Why Portland homeowners choose Cardinal for decks

Master Craftsmanship

Expert installers with decades of experience in architectural precision and weather-resistant construction.

Licensed & Insured

Fully licensed, insured, and committed to safety on every project, protecting your home and our team.

Trusted & Proven

Portland's trusted exterior specialists with 300+ satisfied clients and hundreds of successful projects.

Google reviews

What Greater Portland homeowners say

  • Andrew Mountcastle

    May 2026 · Google

    We hired Cardinal Exteriors to reside our house and install all new windows, and it was a terrific experience from start to finish! Bob was one of the very best contractors we've ever worked with (and we've worked with many over the years). He was extremely responsive, helpful, respectful of wishes and concerns, and never pressured us in any way.

  • John Nueslein

    December 2025 · Google

    CARDINAL EXTERIORS re-shingled my roof. Bob Proved to be Knowledgeable and Trustworthy. He was responsive to my questions and took the time to explain the materials being used and the steps they were taking to weatherproof the roof of my home. The work crew was polite and they cleaned up the job site at the end of each work day.

  • Steve Kelley

    October 2025 · Google

    Bob @ Cardinal Exteriors replace 26 windows and resided our office building in Westbrook in 2025. Being in the construction business, we understand how proposals sometimes come with change orders and surprises if not outlined up front. Bob and his team finished our job on schedule and actually below budget.

Our Deck Building Process

01

Site Visit & Layout

An owner walks the yard and the house, measures, and talks through size, shape, stairs and how you want to use the space.

02

Materials & Fixed Price

Choose composite, PVC, pressure-treated or cedar, plus railings, then get a written fixed-price proposal before work begins.

03

Build From the Footings Up

New footings, framing, decking, railings and stairs, with the site cleaned up at the end of each day.

Frequently Asked Questions

Get a free deck estimate in Cumberland County, Maine

Tell us about the house and what you want changed. One of the owners will call to set up a visit, measure, and write a fixed-price proposal. No pressure, no obligation.

Need it today?Call Mike (207) 408-5388

or Bob at (207) 252-0759