
Mastic sealing for building owners and managing agents in Westhampnett, West Sussex
Mastic sealing for building owners, managing agents and housing associations in Westhampnett. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Damp patches beside frames
- Old repairs sealed over failed mastic
- Complaints coming in block by block
Mastic sealing in Westhampnett
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
About our mastic sealing in Westhampnett
Across Westhampnett and the rest of West Sussex, we work the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Addresses, photographs of typical joints and a rough idea of quantities let us give a quick quote, and site visits can be arranged. We work on communal kitchens and washrooms, external wall and movement joints and communal entrances and stairwells, and the usual reasons a site gets in touch are brittle perimeter mastic across a building and mastic failing across several blocks on an estate. Facilities teams, main contractors and managing agents in Westhampnett tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
For owners with a single building near Westhampnett, we plan to finish in one visit where possible. Send photographs of the frames and joints and we will give a fixed quote.
Work we carry out in West Sussex comes with a 12-month guarantee. Should something we installed fail, give us a call on 01277 525 020 or send details through our quote form and we will come back to it.

- Where
- Westhampnett (PO18)
- Wider area
- West Sussex
- Cover
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
How the job changes by surface
Commercial and mixed-use buildings
Where retail and residential share a building the programme has to suit everyone. We plan around the site hours and access windows you give us.
External movement joints
External movement joints take up expansion and contraction. Once that sealant goes, rain can reach the wall.
Building owners, agents and FMs in Westhampnett
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Westhampnett can form part of a wider programme across West Sussex.
Hotels, schools, healthcare sites, offices and retail units book us directly too. We plan around the way the building is used, so the building keeps working while we do.
Also near Westhampnett
More services for Westhampnett
FAQs: Westhampnett
Can you work at a site such as Glenmore Business Park, by Westhampnett?
Yes. Estates, retail parks and business parks around Westhampnett, Glenmore Business Park among them, are all within reach. A few photos and the unit address let us price the work.
Will you take on a block within reach of Chichester station?
Yes, we work for agents, landlords and housing associations with blocks of every size. Send the address, photographs of the elevations and your access arrangements, and we’ll give a fixed quote.
Do you work to architects’ specifications?
Yes. Send it with your enquiry, and we’ll price the work to it, flagging anything that needs clarifying.
Do you work with property factors and landlords?
Yes, block and estate work is a core part of what we do. Buildings are scheduled in turn so you can plan around it.
How long before the joints can be used?
We’ll confirm how long the chosen product needs to cure, and sign any area that should be left alone.
Do you guarantee the mastic work?
Every building we reseal has a 12-month guarantee. It applies to our workmanship rather than damage or problems with the frames.
Can you send RAMS and CSCS details before starting?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We are CHAS accredited and a Constructionline member.
What we can’t put right
Part of a good diagnosis is knowing where sealant stops. We will tell you if the real problem is any of the following:
- Frames that are rotten, warped or broken
- Glazing that needs replacing
- Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)
Not sure which it is? You can ring 01277 525 020 or use the quote form and we’ll tell you honestly.
Surfaces we seal
- Communal kitchens and washrooms
- External wall and movement joints
- Communal entrances and stairwells
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- Balcony and threshold joints
Site staff or a sealant specialist?
For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
Keeping the joints sound
Problems stay small when the joints are checked regularly. Specifically:
- Check the asbestos register before any old mastic is disturbed
- Mention RAMS, insurance or CSCS requirements up front
- Start inspections with the most exposed faces
- Reduce knocks to communal area joints
If paintable sealant was used, decoration can follow once it has cured. Non-paintable silicone shouldn’t be painted over unless told otherwise.
One failed perimeter typically means others on the same building are close so a single failure is a sign to check the rest. A planned reseal saves repeated visits.
Planned mastic for Westhampnett portfolios
Central London is about 53 miles from Westhampnett. Within reach of London, blocks run by agents and associations are common around stations. Westhampnett is in the South East, one of the UK’s drier regions. 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.
Student blocks close to universities like University of Chichester, 1 mile west of Westhampnett, are easiest to work on between tenancies. Schools and community buildings such as The March CofE Primary School need frame and external mastic kept sound like any building. For agents with blocks near Chichester station, which lies south-west of Westhampnett, a block-wide mastic programme deals with frames, balconies and entrances in one go.
Westhampnett is about 1 mile north-east of Chichester, in West Sussex. Across the PO18 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. We work across 373 places in West Sussex, large and small. Sites around Portsmouth have their own page, roughly 14 miles from Westhampnett.
Business premises anywhere in PO18 are within our area for mastic joints. Buildings on Hill Road, Sears Close and Hamilton Way are within our area. Close to Westhampnett, our area also takes in Maudlin (1 mile east), Shopwyke (1 mile south-east), Westerton (1 mile north-east), Portfield (1 mile south-west) and Strettington (1 mile north-east). Further afield, our area takes in Bognor Regis (5 miles south-east), Selsey (8 miles south), Littlehampton (10 miles east), Rustington (11 miles east), Storrington (14 miles east) and Angmering (12 miles east).
Near you in Westhampnett
In Westhampnett, that means premises near The Coach And Horses Public House, Westbourne House School and Chichester High School For Girls and the streets around them. The nearest railway station is Chichester station, roughly 1.7 miles south-west. A little further out are Chichester Castle (1.2 miles south-west) and Chichester Centre (0.8 miles west). Not far away are Stoke Down and Kingley Vale National Nature Reserve.
On site: what to expect
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. Smaller jobs around Westhampnett can be grouped with others nearby. You will have a fixed quote before work 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 where the joint and the product need them, then new sealant is applied and tooled.
- Completed joints are inspected and carry a 12-month workmanship guarantee.
Getting the site ready
- Tell us which areas need to stay in use
- Tell staff and tenants when we’ll be in
- Arrange parking or a loading space
Getting a fixed quote
To get a fixed quote, call 01277 525 020 or email a schedule or drawings with the site address and an outline of the work. You can also send details through our quote form.