Trim meets wall
The commonest gap. Timber and plaster respond differently to changes in the air, so a shadow line often opens along the top edge of skirting and architraves.
Auckland Roof Painting Pros
Auckland Gap Filling
Thoughtful preparation. A considered finish. Start with a conversation about your property.
Start with the surface
Gap Filling in Auckland
Our Auckland Gap Filling service starts with the property and the surfaces involved. For gap filling, the important considerations include paintable junctions, movement and suitable flexible fillers. Understanding the existing material, coating and condition helps define the right preparation before a finish is selected. Tell us about visible wear, previous work and any areas that need particular attention.
A useful proposal should set out the surfaces included, preparation, any agreed repairs, the coating system and access arrangements. Timing also needs to allow for suitable application and drying conditions. Share your address, photographs and preferred timing through the enquiry form, or call to discuss the project. We can then clarify the details that need assessment and the next step for your property.
Flexible or rigid
Rigid filler or flexible filler?
Where two surfaces meet and stay put, a hard-setting filler can be sanded flat and painted. Where timber meets plaster or cladding, the joint opens and closes with the seasons, and a rigid fill tends to crack along the same line. A flexible product stays slightly elastic and travels with the joint. What counts is the match between filler, gap and location, and whether the product is made to be painted over.
Gaps along trim linesWhich gap suits which fill
Trim against the wall
A fine line along skirting or an architrave usually calls for a flexible fill, because timber and plaster move at different rates.
Between two materials
Where timber meets masonry, metal or plaster, expect movement. Ask for a flexible product suited to that joint and its width.
Wide or deep openings
A deep gap may need packing first, so the flexible fill is not laid in as a single thick bead.
Gaps that keep returning
A joint that reopens or widens points to movement or moisture. That needs assessing before any cosmetic fill goes in.
Gap report
Show us the gap, ruler alongside
Tell us where the gap sits, what lies on either side of it and whether it has grown over time. A photo with a ruler or tape beside the gap shows its width, and a second shot from further back shows what the joint connects.
- Call09 977 9907
- HoursMon–Fri 8am–6pmSat 9am–1pm
- AreaAuckland and the North Shore
Junction map
Joints where gaps tend to open
Gaps are not random. They follow the places where one material stops and another begins.
Mitred corners
Where two trim pieces meet at an angle, the join can part as timber dries or fixings loosen. Small openings fill well; a wide one suggests the trim has moved.
Wall meets ceiling
A hairline along the ceiling junction is often cosmetic movement. Filling it neatly gives you a straight line to paint against.
Cladding meets joinery
Outside, the joint between boards and a window or door surround faces sun and rain. It needs an exterior product, and some openings there are meant to stay open.
Where joints meet
Surfaces that meet at these joints
Gap filling rarely happens alone. These pages cover the surfaces on either side of the gap.
Trim Painting
Skirting, architraves and mitres are where most interior gaps are filled, then painted over.
Window Painting
Frame-to-lining joints move, and some window openings are drainage paths that must stay clear.
Weatherboard Painting
Board ends and the cladding-to-joinery line take weather, and not every opening there should be sealed.
Brick Painting
Mortar joints and weep holes call for different treatment, so know which is which before painting.
Patching
Holes and dents are a different repair from gaps, with a rigid fill and a sanded finish.
Joint check
Not sure which gaps to fill?
Describe the gaps you can see and what they sit between, and send a few photos. We can help sort the ones worth filling from the ones that should stay open or need a closer look.