Renovation Drywall in Calgary, AB — New Board Blended Into Old Walls

Renovation drywall in Calgary is different from boarding a new house. The house is already finished, somebody is living in it, and the new board has to meet old walls without a visible line. Calgary Drywall Doctor has done renovation drywall in Calgary homes since 2004, and it is the part of drywall installation that depends most on care: matching thickness and texture, keeping the dust out of the rest of the house, and working around the kitchen you still need to cook in.

We work on kitchens, bathrooms, basements, additions, wall removals and whole-house renovations across Calgary, Airdrie, Cochrane, Chestermere and Okotoks. Call 587-417-5252 for a free, written, itemized quote.

When You Need Renovation Drywall

Renovation drywall is for any project where part of a finished home is opened up and needs to be closed back in. Common jobs:

• A kitchen renovation where walls were stripped to the studs for new wiring and plumbing.
• A bathroom renovation needing moisture-resistant board and cement board behind new tile.
• A load-bearing wall removed and a beam installed, leaving a ceiling and two wall ends to close and blend.
• Moving or adding walls to change a floor plan.
• A new window or door cut into an exterior wall.
• Old plaster-and-lath walls in a pre-1960s home replaced with drywall.
• An addition tying into the existing house at the ceilings and walls.

Smaller jobs, like a single wall opened for a Poly-B repipe or a few holes from an electrician, are usually a drywall repair rather than a renovation. If the whole room is open, it is a renovation and we quote it that way. In older NW and SW communities, where the housing is mostly 1960s and 1970s, we also see projects that started as a Poly-B repipe and grew into a full kitchen or basement once the walls were open.

Our Renovation Drywall Process

1. Look at what we are tying into. On the site visit we measure the existing board thickness, note the wall and ceiling textures, and look for sags or bows in the old framing that the new board will have to meet.
2. Written scope. The quote lists board types, which textures need matching, dust control, and how many days we expect to be in the house.
3. Set up dust control. Plastic sheeting and zip walls close off the work area from the rest of the house. Floors and stairs are covered. Return-air grilles in the work zone are sealed so dust does not travel through the furnace.
4. Demolition and prep. Any remaining old board that has to go is removed and bagged. Framing is checked, bowed studs are shimmed, and backing is added where new sheets will meet old. If the home was built before 1990 and has a textured ceiling we are disturbing, we stop until it has been lab-tested.
5. Moisture check. In basements and bathrooms we take moisture readings before boarding.
6. Hang new board. Thickness is matched to the existing wall so the joint between old and new lands flat. Where the old wall is out of plane, we shim or float the transition rather than leave a step.
7. Tape, three coats, blend. Joints between old and new get feathered out wide, often further than a new-build joint, so the transition disappears.
8. Texture match. Knockdown or orange-peel is applied to the new area and blended into the old with test patches first.
9. Sand, inspect under raking light, clean. Vacuum-attached sanders and HEPA vacuums keep dust down. We check the finished surface with a low-angle light, then take the plastic down and clean the work area.

Tying New Drywall Into Old Walls

The hardest part of renovation drywall is the line where new meets old. A few things decide whether it shows.

Thickness. Calgary homes from different decades used different board. Many older homes have 1/2" board, some have 5/8", and pre-1960s homes often have plaster over lath that is thicker still. If new 1/2" board meets an old 5/8" wall, there is a step that no amount of compound hides. We match thickness, or shim the framing, or in some cases skim the transition over a wide area.

Framing plane. Old studs have moved. New framing is straight. Where the two meet, we set the new board to the old plane rather than to the new stud, then adjust the framing behind it.

Texture. Most Calgary walls and ceilings from the 1970s onward have orange-peel or knockdown texture, and no two sprayers leave the same pattern. We do test patches on a scrap board until the splatter size and knockdown match, then blend into the existing texture well past the joint. Where an old ceiling has stipple or popcorn, matching is harder, and many homeowners take the renovation as the chance to have it removed and the whole ceiling finished smooth. See texture matching for how we handle the tricky ones.

Dust. A lived-in home cannot absorb drywall dust the way an empty build can. We close off the work area with plastic and zip walls, seal the return-air grilles, run HEPA vacuums on the sanders and clean up every day, so the rest of the house stays usable.

Worth knowing: a transition between old and new drywall should be feathered out over at least a couple of feet, and textures applied before about 1990 in Calgary should be lab-tested for asbestos before anyone sands or scrapes them.

Renovation Drywall Cost in Calgary

Renovation drywall is quoted by the area and the complexity of the tie-in. The lines on your itemized quote:

• Area of new board, walls and ceilings separately.
• Board types: moisture-resistant and cement board in bathrooms, Type X where required.
• Length of old-to-new transitions and how far out they need to be feathered.
• Texture matching, including test patches.
• Removal and disposal of old board or plaster.
• Dust control set-up for a lived-in home.
• Framing corrections and added backing.
• Working in phases around other trades or around the family's schedule.

A renovation often costs more per sheet than new construction because of the tie-ins and the care a lived-in house needs. The quote shows where that time goes. Bathrooms are the exception on a per-sheet basis: small, cut-heavy rooms full of moisture-resistant board and cement board, where the tile setter needs everything flat and plumb.

Why Choose Calgary Drywall Doctor

Renovations are where a drywall crew either respects your house or does not. We cover floors, seal doorways, vacuum daily and leave the kitchen usable at night. We match the old walls rather than hoping paint hides the difference, and we check our work under raking light before the painter sees it. We are licensed, WCB-covered and insured, our quotes are free, written and itemized, and our finish carries a written workmanship warranty.

If you have a renovation opened up and ready to close in, call 587-417-5252. For new builds, garages and the rest of our boarding and finishing work, see drywall installation.