
Commercial sealant contractors in North Heath, West Sussex
Sealant work for offices, shops, hotels and other commercial buildings across North Heath, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Leaks that seem to come through a sealant line
- Black mould through washroom sealant that won’t clean off
- Expansion joints with the sealant torn out
Need commercial sealant contractors in North Heath?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Commercial sealant contractors for commercial buildings in North Heath
Sealant joints are easy to overlook until one lets water in. Mastic Doctor works as a commercial sealant contractor for facilities managers, managing agents and main contractors looking after property in North Heath. We find out why the sealant joints failed, take them out and seal again using a sealant that suits the joint. We work on kitchen worktops and splashbacks, external facade joints and window and door perimeters, and the failures we are asked to look at most are sanitary sealant that has gone black and patchy and layers of sealant, all of them failing. Whether you call it commercial sealant work, mastic application or joint sealing, in North Heath it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.
In North Heath, as anywhere, the first joints to go are normally the ones that work hardest: south-facing perimeters, entrance thresholds and busy washrooms.
Business units in the countryside around places like North Heath are often converted barns, stables or farmyards. Their mix of old walls with new frames, partitions and floors means many joints between unlike materials, and a sealant colour that suits the building’s character is often part of the brief.
The 12-month guarantee covers our workmanship: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

- Location
- North Heath (RH20)
- Region
- West Sussex
- Cover
- 12 months on every job
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Leave it or put it right?
Some managers wait for a fit-out before touching the mastic. That’s reasonable for internal joints that are just tired-looking, but a joint letting water in now keeps doing damage until the refurb arrives. Splitting the scope into now and later is often the sensible compromise. Around North Heath, it’s better to renew all the failing joints at once, rather than one at a time. Photos of every joint help us quote for the whole job.
The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote.
What you get with us
- Matching to RAL references, product permitting
- One phone line for London, the South East and Scotland
- Our applicators hold CSCS cards
- Specification-led, product-correct work
See how commercial sealant jobs are priced and how we’re accredited.
Places near North Heath
Also in North Heath
When to bring in a specialist
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.
Working on commercial sites near North Heath
North Heath sits in one of the drier corners of the country, the South East. Drier doesn’t mean dry every day, so frontage work still has some give in the dates. North Heath has at least three named business or industrial parks inside a 3-mile radius. Each new occupier on a park like these tends to refit, from reception to staff kitchen, often in a colour the occupier specifies.
If you have premises on more than one site, say at Broomers Hill Business Park and Gillman's Industrial Estate, one contractor and one quote can cover both. Shops and cafés around stations like Pulborough station, 2.4 miles south-west of North Heath, trade from early, so work is timed around them. Parks like Broomers Hill Business Park, 0.8 miles south-west of North Heath, see tenants come and go, and every move-in brings joints to seal.
North Heath is about 9 miles south-west of Horsham, in West Sussex. If you’re looking for commercial sealant contractors in North Heath, we can help, as we do across West Sussex. North Heath is one of 373 places in West Sussex on our list for sealant joints. For work in that direction, see our Brighton page, about 18 miles away.
Business premises anywhere in RH20 are within our area. For a building on Gay Street Lane and Stane Street or nearby, send details and we’ll quote for sealant joints. Close to North Heath, our area also takes in Gay Street (1 mile south-east), Adversane (1 mile north), Codmore Hill (1 mile south-west), Broomershill (1 mile south) and Nutbourne (2 miles south). A short drive away, we cover Crawley (15 miles north-east), Horsham (9 miles north-east), Worthing (11 miles south), Burgess Hill (15 miles east), Littlehampton (12 miles south) and Shoreham-by-Sea (14 miles south-east).
Near you in North Heath
The closest station to North Heath is Pulborough station, about 2.4 miles south-west of the centre. For a walk, there’s The Mens.
What we can’t put right
We check first that sealant really is the fix. It isn’t the answer for:
- Structural cracks or movement the joints weren’t designed for
- Old mastic that tests positive for asbestos
- Water from a services leak rather than a joint
If you’re not sure, just call 01277 525 020 or email the details over and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- External facade joints
- Floor and threshold joints
- Movement joints in walls and floors
- Kitchen worktops and splashbacks
- Washrooms and tea points
- Window and door perimeters
Diagnose, treat, sign off
A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work usually takes anything from part of a day on a short run of joints to several weeks on a large phased package, and our waste is bagged and taken away as we go. For work around North Heath, we aim to finish in one visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.
- First, details reach us through the quote form or a site visit.
- The cause is diagnosed and the scope priced as a fixed quote.
- Work is phased around your occupiers where areas need to stay in use.
- Old sealant is cut out completely, never sealed over.
- Each joint gets a suitable sealant, laid to depth and tooled.
- A final walk-round, then the 12-month guarantee applies.
Before we start on site
- Explain the parking and delivery arrangements
- Confirm the product named in the specification
- Flag any permit to work we will need
Get a fixed quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.
Related advice
North Heath: questions and answers
Can the sealant on our North Heath premises match the finishes?
Yes, we can normally get close to most finishes from the product’s colour range. Available colours for the product are confirmed with the quote.
Is a smaller place like North Heath outside your area?
No. Small places get the same service as large ones. We work across Greater London and the South East. We plan jobs in smaller places so return trips are kept to a minimum.
Is the old sealant taken out first?
The old bead is stripped out first. After that come cleaning, primer where needed, backing and the new sealant.
Does the weather affect the work?
It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
Do you work for facilities managers and managing agents?
Yes. A large share of our work comes through facilities managers, managing agents and landlords as well as contractors. Tell us how you issue work and we’ll fit in.
Who decides which product is used?
If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Does commercial sealant work come with a guarantee?
It’s backed by our 12-month guarantee. Should a joint we sealed give trouble during those 12 months, let us know and we’ll look at it.
What affects the price in North Heath
What shapes the price:
- Whether old sealant has to be cut out first
- Site requirements such as inductions and permits
- How much there is to seal
- Backing rod, priming and other preparation
A quote for sealant joints depends on quantities, condition and access. Call for a quote.
Details that help us quote
For an accurate fixed quote, we need a clear picture of the site. Useful things to include:
- Asbestos survey details if the building is older
- Whether the building will be occupied during the work
- The postcode of the building
- Anything awkward about access or site hours
Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.
Commercial clients in North Heath
Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first, with CSCS-carded applicators on site.
Hotels, schools, healthcare sites, offices and retail units come to us directly as well. The work is planned around how the building runs, so the building keeps working while we do.