Sunroom Additions in Moncton, NB
The New Brunswick question that gets answered before anything else: three-season, or built for a real winter.

A sunroom addition in Moncton has to answer a New Brunswick-specific question before anything else: is this a three-season space or a room built to be used through a real winter. Valhalla Construction frames and builds additions across Moncton, Dieppe, and Riverview, and a sunroom follows the same structural standards as any other addition — footings, framing, and a proper tie-in to the existing house — with the glazing and heating decisions layered on top.
Three-season versus four-season
A three-season sunroom uses lighter framing and single- or double-pane glazing built for spring through fall use, and gets closed off or minimally heated through the coldest months. A four-season sunroom is built more like a proper addition — insulated walls below the window line, better-rated glazing, and a real heat source — because it is meant to hold a comfortable temperature through a New Brunswick winter, not just look good in July.
Tied into the house the same way any addition is
A sunroom addition still needs footings below the frost line, framing tied into the existing structure so the roofline and floor level match, and a foundation that will not heave through freeze-thaw cycling — the same foundation and framing standards used on every addition we build, whether the finished room ends up full of windows or not.
What decides the cost of heating it
The glazing is what decides how much a sunroom actually costs to heat through winter, not the size of the room. Double- or triple-pane, low-E coated glass holds heat dramatically better than a single-pane sunroom kit, and that decision gets made at the design stage, not after the room is framed.
Planned around how you will actually use it
A sunroom used for morning coffee three seasons a year is a different build than one meant to replace a living room through a Maritime winter, and the framing, insulation, and glazing all follow from that answer — which is the first thing we work through before drawing up a plan.
Where we provide sunroom additions
Moncton · Dieppe · Riverview and the surrounding communities of southeastern New Brunswick.
This is one piece of what we build under home additions — see the full range of what that covers, including the rest of our outdoor build work.
For cost ranges, permit requirements, and realistic timelines on this kind of work, see the home additions section of our FAQ.
Our Sunroom Additions Work
Real projects from homes across Greater Moncton. Click any photo to look closer.
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