Mastic sealant contractors in The Haven
Mastic sealing for building owners, managing agents and housing associations throughout The Haven and nearby, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Open joints in brickwork or panels
- Repeated reactive repairs to the same buildings
- Leaks at window and door perimeters
Mastic sealing for businesses in The Haven
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
About our mastic sealing in The Haven
Mastic Doctor has sealed joints on commercial and residential blocks since 2005. Our applicators are CSCS-carded and we hold public liability insurance. Resealed mastic joints in The Haven carry our 12-month guarantee. If you have a mix of products and colours from past repairs and damaged joints in communal entrances and corridors, we can help, on window and door perimeters on blocks, communal entrances and stairwells and shopfronts below residential blocks alike. Facilities teams, main contractors and managing agents in The Haven tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
Owners and agents with buildings around smaller places such as The Haven tend to manage small terraces of association properties, converted barns and commercial units. Frame and wall-joint mastic on all of them ages and hardens.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.
- Place
- The Haven (RH14)
- Region
- West Sussex
- Cover
- 12 months on every job
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
What sets the cost
Before we quote, we look at:
- Joint width, depth and condition
- Distance, for remote addresses
- Working within restricted access windows
- Specialist products, such as fire-rated or hygienic sealants
What a job costs comes down to how many linear metres there are, what has to come out first and the access. Call for a quote when you are ready.
What to include in your enquiry
A few photos plus some basic facts will normally do. Please tell us:
- How the joints are reached, and at what height
- Photos of the joints, close up and from further back
- Any dates the work must fit around
- Whether the building will be occupied during the work
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. For smaller jobs, photos and a description will do.
Why act early in The Haven
Reacting to every complaint means sending someone out block by block. Planned resealing covers a whole building or estate in one go and is simpler to manage and budget. One visit to deal with every failing joint makes more sense than several trips to a place like The Haven, rather than one at a time. Send photographs of each area and we will quote for the lot.
Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we will put a fixed figure on it.
Why choose Mastic Doctor in The Haven
- CHAS accredited contractor
- Colours chosen to suit frames, cladding or finishes where possible
- 12-month guarantee on workmanship
- Fully insured
Take a look at what affects the cost or how we’re accredited.
FAQs: The Haven
Is Spring Copse Business Park, near The Haven, within your area?
Yes. We cover The Haven and the area around it, including industrial estates, business parks and retail parks such as Spring Copse Business Park. Send details of the unit and the work through our quote form for a quick quote.
Will you take on a block within reach of Billingshurst station?
Yes, and several blocks can go on one quote. Photos of each elevation help us quote accurately.
Is it fine to apply new sealant on top of old?
No. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.
How do you choose the sealant?
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.
What guarantee do you give on resealing?
Every building we reseal has a 12-month guarantee. It applies to our workmanship rather than damage or problems with the frames.
Can you take on resealing for a block portfolio?
Yes. Managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios are our main clients for this work, and we quote building by building or as a programme.
Can you seal joints high up on a block?
It depends on the building. How upper joints are reached is agreed before work is booked so the fixed quote reflects it.
What the job involves on each surface
External movement joints
Movement joints are cleaned out, backed with rod and resealed with a sealant of the right movement class.
Window and door perimeters on blocks
On most blocks, the frame-to-wall joint is where failure shows first. We remove the failed mastic, prepare the faces, add backing rod if the joint is deep and reseal.
Looking after buildings in and around The Haven
Rainfall across the South East, The Haven included, is lower than in many parts of the UK. Even so, frame mastic only goes on in dry, workable conditions, and south- and west-facing elevations, which take the most sun and rain, often age first. The Haven lies roughly 34 miles out from central London. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres, and window and balcony mastic on them tends to age at the same rate.
For owners of several units at places like Spring Copse Business Park, 1.3 miles to the east of The Haven, one programme can deal with frame and external mastic across the lot.
The Haven is about 3 miles north of Billingshurst, in West Sussex. If you’re looking for mastic sealing in The Haven, we can help. Across West Sussex, 373 places are covered, including The Haven. There’s a separate page for Brighton, about 21 miles away.
We take on mastic joints across the RH14 postcode area. Just outside The Haven, we also work in Five Oaks (1 mile south-east), Bucks Green (2 miles north), Slinfold (2 miles east), Rudgwick (2 miles north) and Tisman's Common (2 miles north-west). Nearby towns on our patch include Crawley (12 miles east), Horsham (5 miles east), Broadfield (11 miles east), Storrington (10 miles south), Billingshurst (3 miles south) and Bewbush (10 miles east).
What’s near The Haven
Recent enquiries here include premises near The Blue Ship Public House. For rail, the closest station is Billingshurst station, roughly 3.4 miles south of the centre. Well-known places in the area include Horsham Hospital (5.3 miles east) and Christs Hospital School Museum (3.9 miles east).
Work for main contractors and building owners
If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
We work for building owners and managing agents on sealant work across single buildings or whole portfolios around The Haven. One quote can cover more than one site, which keeps the paperwork simple.
Diagnose, treat, sign off
When we get to site, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before any cutting starts, and the work typically takes a day or two for a single block, longer for an estate programme. If others near The Haven need work, visits can be combined. A fixed quote is given before anything starts.
- We inspect the joints, building by building, and record what has failed and why.
- We send a fixed quote that sets out the joints, the products and the programme.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- Old sealant is stripped and each face prepared back to firm material.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Finished joints are looked over and the 12-month guarantee confirmed.
What we need from you
- Tell us what induction or permit system the site runs
- Explain the parking and delivery arrangements
- Share the asbestos register for older buildings
Getting a fixed quote
Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.
Read more
Places near The Haven
What else we do in The Haven
When to call us in The Haven
Much failed sealant was laid on dirty, dusty or damp surfaces. Without clean, sound faces and a primer where the product needs one it comes away from one face.
Any of the following is a good reason to get the joints checked over:
- Communal area joints that look neglected
- Brittle perimeter mastic across a building
- Leaks at window and door perimeters
- Draughts at frames across a block
Buildings close to stations like Billingshurst station (to the south of The Haven) are often flats over shops, with frame mastic to keep sound.
Questions to ask before you book
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Whether old or failed sealant will be cut out, not overlaid
- What the guarantee covers, and for how long
- Their public liability cover