

Our screened-in porches and sunrooms are fully customized to match your home’s architecture, siding, and lifestyle. Choose a breezy cedar-framed porch with mesh screens, or a fully enclosed sunroom with insulated glass and electric hookups. Every structure is framed to handle Montana’s snow loads, wind exposure, and temperature swings. Whether you’re looking for a seasonal escape or a four-season room, we design it to last and to live in.
Montana’s beauty comes with a tradeoff bugs, wind, and weather can cut outdoor time short. Screened-in porches and sunrooms create protected spaces where you can relax, dine, or entertain without worrying about insects, rain, or snow drift. Whether you want fresh air and shade in the summer or a glassed-in room with panoramic views, our builds increase year-round usability and curb appeal.
Keep out mosquitos, wasps, and flies
Shelter from wind, rain, and drifting snow
Create cozy zones for reading, dining, or lounging

Our screened and enclosed structures aren’t flimsy kits they’re framed, insulated, and finished like permanent additions. We use pressure-treated framing, engineered footings, and weather-sealed screens or insulated windows. Walls can be left open-air or built with electrical outlets, lighting, and ceiling fans. If you want a usable outdoor room that feels like part of your home, we’ll build it that way fully integrated and Montana-tough.

Looking for a simple screen room or a fully enclosed sunroom? We build both. Three-season porches offer protection without insulation great for spring through fall. Four-season sunrooms feature double-pane windows, insulated floors, and optional HVAC hookups, giving you a usable room year-round. No matter the style, each project is designed to perform through Montana’s temperature swings, elevation, and snow loads.
From concept to cleanup, we manage every part of your build. Our designers help you plan layout, choose materials, and visualize finishes. We pull permits, handle structural drawings, and build everything to local code. Whether it’s a cedar-framed screen porch in Whitefish or a heated glass room in Helena, we make sure your new space adds comfort and value without stress or surprises.

All-Season Builds: From screen rooms to heated glass sunrooms.
Custom Fit: Designed to match your home’s roofline and finishes.
Permit-Ready Plans: We handle all drawings and local code approvals.
Comfort-First Design: Options for lighting, fans, outlets, and more.
Montana Weatherproofing: Framed and sealed to handle elevation and snow load.
Don't worry, we can help!
Screened-in porches and sunrooms offer the perfect in-between. You gain square footage and comfort without the cost or complexity of full interior construction. From reading nooks to plant-filled lounges or morning coffee zones, these spaces bring nature close without the downsides. We build them to last, look great, and blend naturally with your home.
Create bonus space for under-roof relaxing or dining
Reduce maintenance by blocking snow and debris
Add comfort, curb appeal, and resale value
We build every porch and sunroom with Montana’s seasons in mind. Our screen rooms are ventilated for airflow and shaded comfort. Our sunrooms use insulated glass, weather-rated framing, and reinforced rooflines to manage snow, wind, and subzero temps. From Bozeman to Butte, we know how to keep the elements out without sacrificing views, air, or light.
Here’s what homeowners across Montana want to know before enclosing their deck or adding a sunroom:
Screened porches have mesh sides for airflow. Sunrooms use glass windows and often include insulation and electricity.
Yes. We can design it for future enclosure if you want to convert to glass down the road.
Depending on size and location, yes. We’ll assess and include that in the estimate.
Most builds take 3–6 weeks, including design, permits, and construction.

We design and build custom decks tailored to your home, lifestyle, and outdoor space—built for comfort, code, and long-term value.

Durable, low-maintenance decking in brands like Trex and TimberTech. We install with expert framing and clean finishes.

Traditional wood decks built from cedar or pressure-treated lumber, sealed for longevity and built with care.

We replace rotted joists, tighten loose rails, and restore sagging stairs—bringing your deck back to safe, usable shape.

We clean, sand, and seal old decks to restore natural color and extend the life of your outdoor space.

Tiered decks add dimension and function. We build secure, attractive multi-level systems with unified stairs and rails.

We extend existing decks or replace worn boards with modern composite or sealed wood—saving the foundation when possible.

From pergola-style shade to full patio roofs, we protect your deck space from rain, sun, and snow with stylish coverage.

Enjoy fresh air without the bugs. We build screened rooms and glass-walled sunrooms for relaxing in all weather.

We build grilling areas, outdoor sinks, and kitchen setups into decks—complete with fire-safe materials and smart layout.

Add architectural charm and functional shade with custom pergolas, gazebos, or arbors—built freestanding or integrated.

Slip-resistant, water-safe decks designed to wrap hot tubs or pool edges with beauty and durability.

We construct code-compliant outbuildings including garages, workshops, and storage sheds with matching exterior finishes.

We fabricate and install deck railings and stairs to match your design goals and meet local safety codes.

From rooftop lounges to restaurant patios, we build commercial-grade decks that handle heavy use and meet ADA compliance.

Innovation
Fresh, creative solutions.

Integrity
Honesty and transparency.

Excellence
Top-notch services.
Whether you're looking to add a sun-soaked patio, rebuild a storm-damaged deck, or design a multi-level masterpiece, we’re ready to help. Alliance Deck Builders of Montana brings expertise, materials, and trust to every job no matter the size. Contact us today to schedule your free consultation and let’s bring your outdoor vision to life.

Copyright 2026. Montana. All Rights Reserved.