Luton Mastic Man: Commercial & Domestic Sealant Contractor
Sealing after fit-outs, glazing and new build for contractors, plus bathrooms, kitchens and windows for homes and lettings: we’re the mastic man and sealant contractor for Bedfordshire’s biggest town.
- From Bedford
- About 18 miles south, via the A6 or M1
- Villages on this page
- 6
- Typical work
- Post-fit-out sealing, glazing & lettings
- We work for
- Contractors, landlords & homeowners
Bedfordshire’s biggest town
Luton grew on hat-making and later on car manufacturing, and it’s now the largest town in Bedfordshire, with a university, a big shopping centre and its own busy commercial core.
St Mary’s, one of the largest parish churches in the county, stands on the edge of the town centre. Around it are Victorian streets in High Town and Bury Park, inter-war and post-war estates such as Stopsley, Limbury and Marsh Farm, and newer homes at Wigmore and Bramingham.
Lots of rented homes, lots of offices and shops, and a steady stream of new apartments: Luton keeps us busy on both the commercial and domestic side.

Sealant for Luton’s commercial buildings
Washroom & kitchen sealing
Vanity tops, basins, splashbacks and worktops sealed with hygienic, mould-resistant silicone.
Glazing & curtain walling
Mullion, transom and sill joints sealed in a colour matched to the framing.
Façade sealant →Movement joints
Brick, block and concrete joints resealed on commercial and residential buildings.
Expansion joints →Lettings & HMOs
Kitchens and bathrooms resealed quickly between tenants.
Mullions, sills and window heads
Where a mullion meets a sill, or a window head meets a soffit, water collects and tests the joint. We prepare each joint properly, prime where the manufacturer specifies and seal with a weatherproof product matched to the frame.
- IPAF 3a/3b and PASMA trained
- CSCS Skilled Worker card (Sealant Applicator)
- RAMS on request
- Fire-rated sealants installed where specified

The joints people forget
The joint between a window head and a soffit or cladding is easy to miss and hard to reach once the scaffold has gone. We make sure it’s sealed while access is there, so it doesn’t turn into a leak later.
See more of our commercial work on the projects page.

Insured & pre-qualified
Peace of mind for homeowners, builders and main contractors.
- £10m Employer’s LiabilityInsurance cover
- £5m Public Liability & Professional IndemnityInsurance cover
- Constructionline Silver member

- CSCS Skilled WorkerSealant Applicator (NVQ Level 2)
Over 20 years in construction
Products we use
Professional-grade sealants and adhesives from leading manufacturers.
Brand names and logos are trademarks of their respective owners and are shown to identify products we use. No endorsement is implied.
On site now: the new City of London law courts
We’re currently sealing the external window frames on the natural stone façade of the new City of London law courts at Salisbury Square, using a non-staining silicone.
Villages we cover near Luton
Caddington, Slip End and Chaul End to the south-west, Markyate on the Hertfordshire border, and Lilley and Breachwood Green out to the east.
Nearby town pages: Dunstable · Harpenden · Hitchin · Flitwick · County page: Bedfordshire
- Slip End
- Caddington
- Chaul End
- Markyate
- Breachwood Green
- Lilley
Luton sealant questions
Do you seal commercial washrooms and kitchens in Luton?
Yes. We seal vanity tops, basins, urinal and WC surrounds, tiled splashbacks and kitchen worktops in offices, shops, restaurants and other commercial premises, using hygienic, mould-resistant products. Out-of-hours work can be arranged.
Can you seal glazing and window heads on commercial buildings?
Yes. We seal curtain walling, mullion and sill joints, window heads and soffits, matching the framing colour, and work from MEWPs, towers or scaffold with RAMS on request.
Do you do domestic work in Luton too?
Yes. Bathrooms, kitchens and window frames for homeowners and landlords across the town and the villages on this page.
Send the package or a photo
Need a mastic man in Luton? Contractors, email drawings or a joint schedule to office@pioneersealants.co.uk. Homeowners and landlords, WhatsApp a photo to 07757 772 880.
- Opening hours
- Monday – Friday8:00am – 6:30pm
- Saturday9:00am – 4:00pm
- SundayClosed










