
Mastic Sealing in Brighton
Mastic sealing for building owners, managing agents and housing associations in Brighton and across Brighton and Hove. CHAS accredited and fully insured, with a 12-month guarantee.
- Draught complaints from residents or tenants
- Complaints coming in block by block
- Open joints in brickwork or panels
Mastic sealing across Brighton
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Mastic sealing for commercial buildings in Brighton
Older blocks and commercial buildings can have mastic that contains asbestos. We check the asbestos register or survey before any old sealant is cut out, and work stops for testing if there’s any doubt. Removing asbestos-containing material isn’t something we do. If you have brittle perimeter mastic across a building and draughts at frames across a block, we can put it right, on balcony and threshold joints, communal kitchens and washrooms and external wall and movement joints alike. Looking for mastic applicators who cover Brighton? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.
Places the size of Brighton tend to have plenty of blocks, estates and mixed-use buildings run by agents, landlords and housing associations. Planned maintenance programmes can deal with failed mastic across a building or estate at once.
The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.
- Location
- Brighton (BN1, BN2, BN3)
- Region
- Brighton and Hove
- Cover
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026

Diagnose, treat, sign off
Working in a building that stays open takes some planning. The work area is signed and kept contained, with routes through the building left open and move on in phases so staff and visitors can carry on around us. Sites in a big town such as Brighton frequently have reception sign-in, inductions and permits to work. Tell us about inductions, permits and site hours so the plan fits.
- A building-by-building inspection lists the failed joints.
- The quote is fixed and split as suits you.
- We agree the programme and dates with you.
- Old mastic is removed and the joint faces prepared.
- Joints are resealed and tooled.
- Each building is checked and signed off with the 12-month guarantee.
Preparing the site
- Let us know about inductions and permits
- For older buildings, check the asbestos register before work
- Confirm the product named in the specification
Request a quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price the work to it. Smaller jobs need nothing more than photographs and a few notes.
Advice
Questions we’re asked in Brighton
Will you work in a care home in Brighton without moving residents out?
Yes. We work around residents’ routines, a room or two at a time. Tell us about any infection-control or safeguarding requirements and we will work to them.
Can being near the sea in Brighton affect the sealant we need?
It can. Coastal exposure works external joints harder than inland weather. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.
What do you charge?
It depends on the job: quantities, access, the product and any phasing. Call for a quote.
Do you work in Brighton?
Yes. We cover Brighton, and the simplest way to start is to give us a call on 01277 525 020 or email a schedule or drawings.
Who decides which product is used?
Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Will you just go over the old sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.
Can you take on resealing for a block portfolio?
Yes, block and estate work is a core part of what we do. We work through buildings in a planned order so you can plan around it.
Work for main contractors and building owners
Hospitality, education, healthcare, office and retail clients book us directly too. The work is planned around how the building runs, so the building keeps working while we do.
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.
Frames, entrances and external joints in Brighton
The sea is no more than about 1 mile from Brighton. For owners and agents with buildings near the sea, exposed elevations are where frame mastic fails first, and they deserve more regular inspection. Brighton is about 46 miles from central London. Managed blocks of flats are a big part of commuter-belt property.
For agents with blocks near London Road (Brighton) station (under half a mile north-west of Brighton), a block-wide mastic programme deals with frames, balconies and entrances in one go. Site managers at schools like Fairlight Primary School can fit frame mastic into the summer works.
Brighton is in Brighton and Hove. We send applicators to Brighton for mastic joints, handled exactly as we handle every other area. Our Brighton and Hove coverage takes in 29 places, large and small.
Commercial sites across BN1, BN2 and BN3 are covered for mastic joints. Streets here include London Road, Isetta Square and Pelham Square, and sites on any of them can send details for a fixed quote. Brighton sits on or close to the A23 and A259, useful when we plan access and materials. Just outside Brighton, we also work in Hanover (1 mile south), Carlton Hill (1 mile south), West Hill (1 mile west), Hollingdean (1 mile north) and Seven Dials (1 mile west). Nearby towns on our patch include Brighton and Hove (3 miles west), Portslade (4 miles west), Aldrington (3 miles west), Hangleton (3 miles west), Saltdean (4 miles south-east) and Rottingdean (3 miles south-east).
Landmarks near Brighton
Recent enquiries here include premises near Brighton Hove and Sussex Sixth Form College, William Clarke Park and Park Crescent pub and the streets around them. There’s a railway station in Brighton itself: London Road (Brighton) station. Well-known places in the area include Brighton General Hospital (0.7 miles east) and Old Police Cells Museum (1 mile south-west). For a walk, there’s Newmarket Hill and Whitehawk Hill.
Why act early in Brighton
Resealing ahead of leaks keeps it to a maintenance task. Once water has tracked in, the repair list grows, and the complaints come with it. On a busy site in a large place like Brighton, a failed joint gets worse with every day of use. Catching it early keeps the fix simple.
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you will have a fixed figure to work with.
What you get with us
- Workmanship guaranteed for 12 months
- Products installed to the manufacturer’s instructions
- Constructionline member for supplier checks
- Clear, fixed quotes
See our cost guide and our accreditations.
Cost factors for mastic joints
What shapes the price:
- Travel to remote or island sites
- How accessible the joints are
- The site’s rules and procedures
- The size and state of each joint
The specified product makes a difference, and so does the preparation. Access, phasing and site rules also count.
Sending details for a quote
A few photos plus some basic facts will normally do. It helps to include:
- The postcode of the building
- Approximate linear metres or a joint schedule
- What the building is and how it’s used
- The product your specification calls for
Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to call 01277 525 020 or send details through our quote form with what you know.
What the job involves on each surface
Window and door perimeters on blocks
Blocks have a mix of frame materials, and the product is matched to the frame material and the masonry. Colours are confirmed for the product used.
Communal areas
Low-level communal joints get damaged more than most and tend to fail first.
Places near Brighton
Also in Brighton
What we are called out for in Brighton
Previous repairs often sealed new mastic over old. New silicone has nothing to grip on old silicone and the repair soon fails.
Site and facilities staff are often the first to spot these:
- Mastic failing across several blocks on an estate
- Communal area joints that look neglected
- Complaints coming in block by block
- Cracked, hardened mastic round windows on a block
Churches, halls and community buildings such as St Martin's Church are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time.
Comparing quotes
- Their public liability cover
- The named product and why it was chosen
- How long is the guarantee, and what does it include?
- Health and safety accreditation such as CHAS