Mastic sealing for building owners and managing agents in Westbourne, West Sussex
Mastic sealing in Westbourne, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Cracked, hardened mastic round windows on a block
- Worn sealant at communal door frames
- Patchy repairs in mismatched sealant
Mastic sealing across Westbourne
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Honest limits
Part of a good diagnosis is knowing where sealant stops. We will tell you if the real problem is one of these:
- Water coming in from the roof or rainwater goods
- Broken glass or failed sealed units
- Asbestos-containing sealant, which we don’t remove
Not sure which it is? You can ring 01277 525 020 or email a schedule or drawings and we’ll tell you honestly.
Joints and surfaces we work on
- Window and door perimeters on blocks
- External wall and movement joints
- Shopfronts below residential blocks
- Communal kitchens and washrooms
- Balcony and threshold joints
- Communal entrances and stairwells
How we handle mastic sealing in Westbourne
We diagnose before we prescribe: what has failed, what caused it and whether new sealant will actually solve it. Failed mastic is stripped, the faces taken back to sound material, primed where the manufacturer specifies and resealed and backing rod used wherever a joint is deep. We work on external wall and movement joints, communal entrances and stairwells and communal kitchens and washrooms, and the usual reasons a site gets in touch are old repairs sealed over failed mastic and leaks at window and door perimeters. Whoever orders the work in Westbourne, the brief is typically the same: a clear scope, tidy work and joints that don’t fail again.
Around smaller places like Westbourne, older walls fitted with newer windows are a familiar sight. Perimeter mastic there has to grip an uneven face and suit the building’s character.
Whoever the client is, the cover is the same: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Where
- Westbourne (PO10)
- Region
- West Sussex
- Cover
- 12 months on every job
- Price
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Why act early in Westbourne
Failed perimeter mastic lets cold air in around frames and the windows typically get the blame. Resealing the perimeters is often the simpler fix when the frames themselves are sound. For buildings around smaller places like Westbourne, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Resealing early avoids that.
The specified product makes a difference, and so does the preparation. Access, phasing and site rules also count.
What you get with us
- 12-month guarantee on workmanship
- Products installed to the manufacturer’s instructions
- Our applicators hold CSCS cards
- Colour options checked against the specified product
See what affects the cost and our accreditations and insurance.
Mastic sealing around Westbourne: points for this area
Westbourne sits close to the coast, within about 2 miles. For owners and agents with buildings near the sea, exposed elevations are where frame mastic fails first, so it’s worth inspecting those sides more often. At about 57 miles from central London, Westbourne is within reach of the capital. Managed blocks of flats are a big part of commuter-belt property.
If you’re responsible for a building such as St John the Baptist's Church, frame and door mastic needs the same attention as any other property. With historic buildings such as Warblington Castle (to the south-west of Westbourne) in the wider area, owners of older properties around Westbourne should expect mastic to need a product that suits old masonry. Site managers at schools like Westbourne Primary School can fit frame mastic into the summer works.
Westbourne is about 3 miles east of Havant, in West Sussex. Looking for mastic sealing in Westbourne? We can help, as we do across West Sussex. Westbourne is one of 373 places in West Sussex on our list for mastic joints. Our Portsmouth page has more on work in that area (8 miles or so).
We take on mastic joints across the PO10 postcode area, whatever the building. Streets here include The Square, Church Road and Crockford Road, and sites on any of them can send details for a fixed quote. Close to Westbourne, our area also takes in Lumley (1 mile south), Woodmancote (1 mile east), Emsworth (1 mile south-west), Southbourne (1 mile south-east) and Denvilles (2 miles west). Nearby towns on our patch include Bognor Regis (12 miles south-east), Chichester (7 miles east), Selsey (11 miles south-east), Portfield (7 miles east), Yapton (14 miles east) and East Wittering (7 miles south).
Local landmarks in Westbourne
We work on buildings around Stansted Park, The Good Intent Public House and Bourne Community College and the streets around them. Westbourne’s nearest station is Emsworth station, about 1 mile south-west of the centre. A little further out are Warblington Castle (2.2 miles south-west) and Havant War Memorial Hospital (2.8 miles west). For a walk, there’s Stoke Down and Brook Meadow (Emsworth).
Quoting for work in Westbourne
Quotes vary with the job. It mainly depends on:
- Removal of failed or old sealant
- Quantities, in metres or numbers
- Backing rod, priming and other preparation
- Travel to remote or island sites
A quote for mastic joints depends on how many there are, their condition and the access, plus any specification you’re working to. Ask us for a fixed quote.
What we need to price the job
Good information means a firmer quote. When you get in touch, include:
- The product your specification calls for
- Asbestos survey details if the building is older
- Any dates the work must fit around
- Approximate linear metres or a joint schedule
The quickest route to a quote is a few photos and the site postcode. Send them through the quote form, or call 01277 525 020 or email the details over if you’d rather talk the job through.
Different surfaces, different methods
Estate-wide resealing programmes
A programme can start with the worst buildings and work down. Quotes can be per block or for the full programme.
Communal areas
Communal entrances, stairwells and corridors have joints at door frames, screens, skirting and floor edges. Fresh joints make shared areas look looked after.
For managing agents and facilities managers
Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, with each stage agreed with your site contact.
As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.
FAQs: Westbourne
Do you work for managing agents with blocks near Emsworth station?
Yes, and several blocks can go on one quote. We work to your notice and access arrangements.
Does your area include sites such as Hambrook Business Park, near Westbourne?
Yes. We cover Westbourne and the area around it, including industrial estates, business parks and retail parks such as Hambrook Business Park. Send details of the unit and the work through our quote form for a quick quote.
Does the weather affect the work?
It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.
How do you choose the sealant?
A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.
Is Westbourne in your area?
Yes. Westbourne falls within our area, and you can speak to us on 01277 525 020 or use the quote form to get started.
Will you just go over the old sealant?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
How do you handle work on occupied blocks?
We plan around people living or working in the building. Dates and areas are agreed with you so residents or tenants can be told and communal access is kept open.
Towns and villages near Westbourne
Also in Westbourne
How a job runs
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. Jobs in and around smaller places like Westbourne are usually planned as a single visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.
- First comes a look at the joints and, for older buildings, the asbestos records.
- A fixed quote covers the joints, products and order of work.
- Failed mastic is removed completely.
- Joint faces are cleaned, backed and resealed.
- We finish each building before moving to the next.
Preparing the site
- Warn occupants and staff about the work
- Point out any areas we must not close
- Tell us what induction or permit system the site runs
Get a fixed quote
For a fixed quote, phone 01277 525 020 or email a schedule or drawings, telling us the site location and the nature of the job. Our quote form is another easy route.