The Mastic Doctor team standing beside their branded vans outside an office building
Brighton and Hove · England

Mastic sealant contractors in Stanmer

Mastic sealing for Stanmer, from a contractor working since 2005. Fully insured and CHAS accredited.

  • Damaged joints in communal entrances and corridors
  • Movement joints with sealant missing
  • Occupiers reporting cold air round windows
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
CHAS accredited
Fully insured: £5m PL

Mastic sealing for businesses in Stanmer

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

How we handle mastic sealing in Stanmer

Different joints need different sealants. Low-modulus neutral-cure silicone suits many window perimeters and external movement joints, and MS polymer sealants stick well to many substrates and often take paint. We will confirm the colours available for the specified product. Site teams most often ask us about draught complaints from residents or tenants and old repairs sealed over failed mastic, across shopfronts below residential blocks, communal kitchens and washrooms and external wall and movement joints. Facilities teams, main contractors and managing agents in Stanmer tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

Around smaller places like Stanmer, older walls fitted with newer windows are a familiar sight. The mastic needs to suit an irregular masonry face and the look of the building.

Work we carry out comes with a 12-month guarantee. If an installation problem shows up, ring 01277 525 020 or email the details over and we will arrange a return visit.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Stanmer (BN1)
Region
Brighton and Hove
Cover
A 12-month guarantee
Quotes
Quoted before any work starts
Telephone
01277 525 020
Updated
3 November 2026

For managing agents and facilities managers

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.

We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Stanmer can form part of a wider programme.

Why act early in Stanmer

Mixed repairs by different contractors leave a patchwork of products and colours. A block-wide reseal gives one product, one colour and one guarantee. Halls, stores and units around places like Stanmer may not be checked every day, which gives a failed joint time to do damage. Resealing early avoids that.

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.

Why appoint us

  • CHAS accredited contractor
  • Failed material removed, not covered up
  • One contact handling all your sites
  • Work carried out by CSCS-carded applicators

Take a look at how commercial sealant jobs are priced and our accreditations and insurance.

What we are called out for in Stanmer

Previous repairs often sealed new mastic over old. New sealant won’t grip failed sealant and the repair soon fails.

Common reasons buildings call us in:

  • Mastic failing across several blocks on an estate
  • Patchy repairs in mismatched sealant
  • Failed external movement joints
  • Occupiers reporting cold air round windows

Older community buildings, Stanmer Church among them, often have frames of mixed ages whose mastic varies.

What your quote should include

  • What level of public liability insurance do they hold?
  • Do they follow the manufacturer’s priming guidance?
  • Will CSCS-carded applicators be on site?
  • Which product they’ll use, and why it suits the joint

Questions to ask before you appoint anyone

Questions about Stanmer

Do you work in occupied care homes around Stanmer?

Yes. We agree rooms and times with the manager and work a few areas at a time. Tell us about any infection-control or safeguarding requirements and we will work to them.

Do you cover business parks and estates near Stanmer, such as Hollingbury Industrial Estate?

Yes. Our area takes in Stanmer and its surroundings, with estates and business parks such as Hollingbury Industrial Estate included. Send details of the unit and the work through our quote form for a quick quote.

How long does a typical visit take?

That varies with the scale of the job, though a typical visit typically takes a few days for most blocks, with larger programmes scheduled building by building. Larger or phased jobs take longer, and we will give you a timescale with the quote.

What will the job cost?

There isn’t a price list, as every site differs. Send photographs or drawings and we will price it at a fixed figure.

What about access for upper-floor joints?

We talk through access for each building when we quote. Tell us the number of storeys and whether scaffold or other access is planned and we’ll confirm the approach in the quote.

Does weather matter for sealant work?

It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Internal work is far less affected.

Do you take on small jobs?

Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.

When to bring in a specialist

Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

Mastic sealing around Stanmer: what changes locally

Stanmer is in the South East, one of the UK’s drier regions. External mastic still waits for dry faces and the right temperature, while the elevations that take the most sun tend to show hardened mastic first. At about 44 miles from central London, Stanmer is within reach of the capital. Within reach of London, blocks run by agents and associations are common around stations; their frame mastic often ages block-wide.

For owners of several units at places like Hollingbury Industrial Estate, 1 mile west of Stanmer, one programme can deal with frame and external mastic across the lot. Blocks of flats and mixed-use buildings often cluster around stations such as Falmer station (0.8 miles south-east of Stanmer) and their window and balcony mastic tends to age at the same rate across a building.

Stanmer is about 3 miles north-east of Brighton, in Brighton and Hove. We cover commercial sites throughout Stanmer, for single jobs and planned programmes alike. We work across 29 places in Brighton and Hove, from busy centres to rural villages.

If you need mastic sealing in BN1, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. If your building is just outside Stanmer, we cover Hollingbury (1 mile south-west), Moulsecoomb (2 miles south), Bevendean (2 miles south), Patcham (2 miles west) and Hollingdean (2 miles south-west). Bigger towns within reach include Brighton (3 miles south-west), Brighton and Hove (4 miles south-west), Hove (4 miles south-west), Carlton Hill (3 miles south), Hanover (3 miles south) and West Hill (3 miles south-west).

Around Stanmer

Locally, jobs take us to sites close to Stanmer Park, University of Sussex Library and Brighton Aldridge Community Academy, among other places. The nearest railway station is Falmer station, roughly 0.8 miles south-east. Nearby you’ll also find Clayton Castle (3.4 miles north-west) and Churchill Square (3.7 miles south-west). The countryside around Stanmer includes Ditchling Beacon and Ladies Mile.

Map of Stanmer © OpenStreetMap contributors

Our process

We bring the products specified for the job, along with primers and backing rod. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. If others near Stanmer need work, visits can be combined, which keeps travel down. You’ll have a fixed quote before work starts.

  1. Each block or building is walked and the failed joints recorded with the likely cause.
  2. We send a fixed quote that sets out the joints, the products and the programme.
  3. The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
  4. We remove the old mastic completely and clean the joint faces back.
  5. Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
  6. Each building is checked on completion and the work carries our 12-month guarantee.

Before we start on site

  • Let us know about inductions and permits
  • Tell staff and tenants when we will be in
  • Tell us your opening times and when work is allowed

Getting a fixed quote

Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to give us a call on 01277 525 020 or email us.

Get a quick quote

Related advice

When something else is needed

We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:

  • Asbestos-containing sealant, which we don’t remove
  • Frames that are rotten, warped or broken
  • Misted or failed double-glazed units

If you are not sure, just call the office on 01277 525 020 or send photos by email and we’ll give you a straight answer.

Joints and surfaces we work on

  • External wall and movement joints
  • Shopfronts below residential blocks
  • Window and door perimeters on blocks
  • Balcony and threshold joints
  • Communal kitchens and washrooms
  • Communal entrances and stairwells
Accreditations

Trusted. Accredited. Insured.