Walls skimmed flat, houses rendered and damp put right, from Welwyn Garden City.

Over 20 years in plastering, rendering and damp proofing, for a small repair or a full property renovation, across Hertfordshire and north London.

5.0 from 22 Google reviews9.96/10 on CheckatradeOpen 7 days

A finished room with freshly plastered walls and chimney breast
Inside: a finished room
A freshly rendered chimney upstand on a slate roof
Outside: fresh render
Google
5.0 from 22 reviews
Checkatrade
9.96/10 from 39 reviews
Experience
Over 20 years
Mon - Sat
8am - 8pm (Fri from 8:30)
Sunday
10am - 5pm
A living room freshly plastered, with dust sheets down

Plastering inside the house

All aspects of plastering covered. Every wall and ceiling is finished smooth, clean and durable, with a tidy, efficient service from start to finish.

  • Skimming

    A fresh skim over tired, cracked or patched walls and ceilings, left flat and smooth so it's ready to paint.

  • Artex ceilings

    Artex ceilings removed or skimmed over, so the room gets a clean, flat ceiling again.

  • Plaster boarding and dry lining

    New boards up, taped and jointed, then plastered. Drywall insulation too.

  • Flat ceilings

    Ceilings plastered flat, including bathroom ceilings where cracks have started to appear.

  • Full rooms and renovations

    From a small repair to a full property renovation, inside and out.

Also: wallpaper stripping, tape and jointing, and magnetic plastering.

Ask about your walls or ceiling
A freshly plastered alcove wall beside a fireplace
Alcove and chimney breast
A bathroom ceiling freshly plastered above tiled walls
A bathroom ceiling
Fresh plaster around a pair of French doors
Around new French doors
A wall mid-job with the board joints taped and plaster being mixed
Boards taped, ready for the skim

Rendering outside

Modern and traditional rendering finishes, and all aspects of external plastering covered, from a small repair to a full house front.

  • Silicone rendering
  • K Rend
  • Monocouche rendering
  • Insulated rendering
  • Pebble dashing and rough casting
  • Cracked render put right
Get a rendering quote
A long extension wall finished in render, with scaffold poles
A rendered single-storey extension with a white window
A tall, smooth rendered side wall under a blue sky
Render going on under scaffolding below a slate roof
Insulated render boards on an extension wall
A rendered front garden wall along a red-brick house
A rendered front garden wall

Damp proofing

Effective damp proofing solutions to protect your home long-term: damp-blown plaster put right, waterproof plastering inside, and cracked render outside repaired.

“170 year cottage, damp blown plaster in dining room wall, cracked exterior render.”

“Punctual, polite, obliging and did a good job. Excellent clearing up every day.”

Richard S, SG2 · 10/10 on Checkatrade
A cottage wall stripped back and replastered at the bottom after damp
Lower wall replastered
A scratch coat of render on a wall during a damp job
Scratch coat going on

What customers say

5.0 from 22 reviews on Google

“James, thanks for plastering my ceiling, I'm very impressed with the results. A job very well done! Great communication, very tidy, a lot of care taken in the work and quality workmanship.”
Steve D · Google · 2 weeks ago
“James did a brilliant job plastering our bathroom ceiling after cracks started to appear in our old one. James reviewed the situation and worked with us to get it sorted as soon as possible. James was super tidy so there was minimal clean up after, and I’m very happy with how the ceiling looks.”
Luke Stothard · Google · 2 months ago
“Had our living room and two bedrooms replastered and I'm really pleased with the result. He repaired the damaged areas and skimmed throughout, and the finish is spot on. Walls are flat and smooth, no patching needed before painting. Clean and tidy worker too, which I appreciated, and easy to deal with from the first quote through to the end of the job. No hesitation recommending him”
Scott Barker · Google · 3 months ago
“I’ve used James a few times now, and every job he’s done has been completed to an excellent standard. Most recently he carried out the drywall insulation, and once again I couldn’t fault his work. He’s reliable, professional, turns up when he says he will, and his prices are very fair. It’s hard to find someone you can trust, but James always delivers high-quality workmanship…”
Marianne Griffin · Google · 3 months ago
“We recently moved into a new home and wanted to skim over the artex ceilings. We were tight on time because of the other decorating jobs that needed doing, but James was very flexible to work around our schedule and young family. He was very friendly which always makes a difference when someone is working in your home. The ceilings look incredible and we couldn’t be happier. He also advised on some damaged walls and was able to add include that in the work. I would definitely recommend James to anyone. We’ve used other plasterers before and the finishing that James delivered was far far better.”
Jackson Sayce · Google · a month ago

On Checkatrade too

9.96

out of 10, from 39 reviews over the past 12 months

Quality of work
9.95
Reliability
9.95
Communication
9.97
Read them on Checkatrade

Professional plasterer with high quality craftsmanship

“James helped with two small bedrooms that needed plastering on various walls. He did a great job. Neat, tidy and the plastering was perfect.”
Philip H, AL6 · 10/10 · 20 October

plastering kitchen in 1930s house

“James is so easy to get on with, explained everything he was doing and why. Completed a fantastic job with a wonderful finish. Timing was spot on too.”
Ashley T, EN1 · 10/10 · 22 September

Bathroom ceiling plaster

“James plastered our celing at short notice. Turned up on time, good communication, polite, clean and job done well. Would recommend.”
Verified reviewer, HP16 · 10/10 · 3 days ago
A curved wall freshly plastered, with the SJ Plastering sign board leaning against it

Who you’ll be dealing with

Sarah James Plastering & Damp Proofing is run by Sarah Spinks, and James is the plasterer on the job. Between plastering, rendering and damp proofing we bring over 20 years of experience to every wall, ceiling and house front.

We take pride in our attention to detail, so every job is finished smooth, clean and durable. We believe in honest advice, fair pricing and clear communication throughout, and much of our work comes from repeat customers and recommendations.

Plasterers you can trust.

No matter the size of the job, we aim to provide a tidy, efficient and dependable service from start to finish.

Where we work

Based in Welwyn Garden City, plastering and rendering across Hertfordshire and north London.

Opening hours

Monday8am - 8pm
Tuesday8am - 8pm
Wednesday8am - 8pm
Thursday8am - 8pm
Friday8:30am - 8pm
Saturday8am - 8pm
Sunday10am - 5pm

Get a quote

Tell us about the walls, ceilings or render, and where you are. You can also send photos on WhatsApp.

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