The Mastic Doctor team standing beside their branded vans outside an office building
West Sussex · England

Commercial sealant contractors in Northchapel, West Sussex

Sealant work for offices, shops, hotels and other commercial buildings in Northchapel. CHAS accredited and fully insured, with a 12-month guarantee.

  • Frame mastic that has hardened and come away from the wall
  • Weathered facade sealant that no longer flexes
  • Untidy joints in a reception, shop floor or lobby
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
Constructionline member
£5m public liability

Commercial sealant contractors for businesses in Northchapel

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Looking after the joints

Keep the joints in good shape with a few simple steps:

  • Keep barriers up until the new sealant has cured
  • Make sure ventilation in wet areas is switched on and working
  • Report cracked or peeling sealant early
  • Look at the sealant around anything that has been moved or replaced

Brief your cleaning team on the joints that have been resealed. Scourers, blades and harsh products shorten a bead’s life, while a neutral cleaner and a soft cloth do no harm.

A failed external joint lets water in every time it rains. It can run into cavities, insulation and internal finishes long before anyone sees a stain. Resealing early keeps the problem in the sealant and out of the building.

How we handle commercial sealant contractors in Northchapel

A reseal stands or falls on the preparation underneath it. Silicone has no grip on cured silicone, so the failed bead is cut out completely and the faces are cleaned until they’re sound and dry, with no dust or grease left. Where the sealant maker specifies a primer for that substrate, it goes on before the new bead, and a backing rod limits the depth to give the sealant room to work. We work on window and door perimeters, movement joints in walls and floors and floor and threshold joints, and the usual reasons a site gets in touch are external beads that have gone brittle and cracked and shrunken sealant along kitchen worktops and splashbacks. Facilities teams, main contractors and managing agents in Northchapel tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

The most common commercial job in Northchapel is resealing joints that have simply reached the end of their life: hardened, cracked or shrunk away from the faces, and letting water or dirt in.

Rural business units near smaller places such as Northchapel are frequently converted agricultural buildings. 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.

Whoever the client is, the cover is the same: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Northchapel (GU28)
Region
West Sussex
Guarantee
12 months on every job
Price
Fixed quote, scope in writing
Call
01277 525 020
Page updated
3 November 2026

Do you need commercial sealant contractors in Northchapel?

External sealant takes a steady beating from the weather. Sunny elevations dry the surface out and exposed ones take driving rain; in time the surface chalks, hardens and cracks. Once it stiffens, the joint opens up at the next big temperature swing.

Any of the following is a good reason to get the joints checked over:

  • Leaks that seem to come through a sealant line
  • Expansion joints with the sealant torn out
  • Untidy joints in a reception, shop floor or lobby
  • Window and door perimeter joints that have cracked open

Industrial estates such as Colhook Industrial Park., 2.2 miles south of Northchapel, have offices, trade counters and welfare areas whose sealant ages like any other building’s.

What to look for in a quote

  • Will RAMS and insurance details be available?
  • Will failed sealant be removed rather than covered?
  • Their pre-qualification and accreditations
  • Who will actually carry out the work

Our contractor checklist

When it isn’t the sealant

Our job is the joint, not everything around it. On its own, sealant can’t deal with:

  • Old mastic that tests positive for asbestos
  • A dripping trap, valve or pipe behind a fitting
  • A failed roof covering or waterproofing membrane

If you’re not sure, just phone 01277 525 020 or email a schedule or drawings and we will give you a straight answer.

Surfaces we seal

  • Window and door perimeters
  • Movement joints in walls and floors
  • Floor and threshold joints
  • External facade joints
  • Kitchen worktops and splashbacks
  • Washrooms and tea points

Our process

Tell us your site hours and access windows and we’ll plan around them. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. If others near Northchapel need work, visits can be combined. A fixed quote is given before anything starts.

  1. We start with the evidence: photographs, drawings or a look on site.
  2. You get a fixed quote covering removal, preparation and the new sealant.
  3. Sequence, access and working times are settled before the first joint is touched.
  4. The failed sealant comes out and the faces are prepared, with primer where required.
  5. Depth is set with backing, then the sealant is applied, tooled and the area tidied.
  6. Completed areas are signed off with you under our 12-month guarantee.

What we need from you

  • Tell us what induction or permit system the site runs
  • Send any specification or drawings in advance
  • For older buildings, check the asbestos register before work

Request a quote

Need a figure for a tender or a budget? We will quote against your scope and drawings that you can work with. If you have questions first, give us a call on 01277 525 020 or email drawings and photos.

Ask for a quote

Read more

Common questions from Northchapel clients

Does your area include sites such as Colhook Industrial Park., near Northchapel?

Yes. We cover Northchapel and the area around it, including industrial estates, business parks and retail parks such as Colhook Industrial Park.. A few photographs and the unit address let us price the work.

Can you supply sealant in our brand colour for a site in Northchapel?

Yes, we can typically get close to most finishes from the product’s colour range. Send colour references or photos and we’ll confirm what’s available for the product.

Do you work for facilities managers and managing agents?

Yes. We quote, schedule and report back in the way that suits your process, with a 12-month guarantee on the workmanship.

Does commercial sealant work come with a guarantee?

Our workmanship on each job is backed by a 12-month guarantee. Public liability insurance is in place too.

Do you check for asbestos before removing sealant?

On older buildings, our first request is the asbestos survey. Managing asbestos is the dutyholder’s responsibility.

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.

How long does a job like this take?

That varies with the scale of the job, but the work usually takes anything from part of a day on a short run of joints to several weeks on a large phased package. For bigger or phased jobs, we will set out a timescale with the quote.

Quoting for work in Northchapel

Before we quote, we look at:

  • Location, for remote and island sites
  • Which sealant the job calls for
  • Any access equipment needed
  • How much existing material needs removing

What a job costs comes down to the quantity of joints, what has to come out first and how the joints are reached. Call for a fixed quote when you are ready.

Before you send an enquiry

To price the job accurately, we need to understand the site. Useful things to include:

  • The asbestos register, for older buildings
  • Rough lengths or quantities, or drawings if you have them
  • Any dates the work must fit around
  • The product your specification calls for

Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. To get it moving, give us a call on 01277 525 020 or email us.

What Northchapel’s businesses ask us to seal

Northchapel is about 39 miles from central London. Business parks and retail centres are common around the capital’s motorway corridors. Occupiers with several premises in the region tend to prefer one contractor and one point of contact. The South East is one of the drier parts of the UK. Drier doesn’t mean dry every day, so frontage work still has some give in the dates.

Premises within reach of Haslemere station, 4 miles north-west of Northchapel, often have busy frontages where joints are seen by everyone passing.

Northchapel is about 12 miles south-east of Farnham, in West Sussex. We send applicators to Northchapel for sealant joints. We work across 373 places in West Sussex. Sites around Portsmouth have their own page, roughly 26 miles from Northchapel.

Postcode districts covered here: GU28. If your site is on Pipers Lane, Valentines Lea and St Michaels Close or close by, send details and we will quote for sealant joints. Close to Northchapel, our area also takes in Ebernoe (2 miles south-east), Shillinglee (2 miles north-east), Lurgashall (2 miles south-west), Ansteadbrook (2 miles north-west) and Ramsnest Common (2 miles north). Nearby towns on our patch include Horsham (14 miles east), Storrington (13 miles south-east), Billingshurst (9 miles east), Roffey (15 miles east), Southwater (13 miles east) and Midhurst (7 miles south-west).

Local landmarks in Northchapel

We work on buildings around Deepwell Tavern and the streets around them. The closest station to Northchapel is Haslemere station, about 4 miles north-west. A little further out are Haslemere and District Hospital (3.7 miles north-west). The countryside around Northchapel includes Shillinglee Lake and Blackdown.

Map of Northchapel © OpenStreetMap contributors

Why deal with it now?

Sealant is often treated as an afterthought by the trade that fitted the element. A specialist applicator takes care of product choice, joint depth and preparation, and they’re where most failures begin. You notice the difference years later, not on the day. One visit to deal with every failing joint makes more sense than several trips to a place like Northchapel. Send photos of each area and we will quote for the lot.

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.

What you get with us

  • CHAS accredited contractor
  • 12 months’ guarantee on every job
  • A range of standard colours, depending on the product
  • Public liability insurance in place

See our cost guide and our accreditations.

Accreditations

Trusted. Accredited. Insured.