Mastic sealing for building owners and managing agents in Sidlesham, West Sussex
Commercial sealant work in Sidlesham for contractors, FMs and building owners: mastic sealing for building owners, managing agents and housing associations, with a fixed quote first.
- Open joints in brickwork or panels
- The same joint failures repeated across a portfolio
- Draught complaints from residents or tenants
Mastic sealing across Sidlesham
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
When to bring in a specialist
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.
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. That’s why many clients bring in a specialist from the beginning.
Mastic sealing in Sidlesham, done properly
In buildings from before 2000, some old mastics contain asbestos. We check the asbestos register or survey before any old sealant is cut out and if it’s suspected, work stops until it’s tested. We don’t remove asbestos-containing materials. We work on communal kitchens and washrooms, external wall and movement joints and balcony and threshold joints, and the failures we are asked to look at most are open joints in brickwork or panels and window mastic that has split and shrunk. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Sidlesham, that means joint design, primers and backing rod as standard.
For buildings around smaller places like Sidlesham, we group work so one trip covers it. Photos of each elevation help us quote accurately.
Our workmanship is guaranteed for 12 months. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Location
- Sidlesham (PO20)
- Region
- West Sussex
- Cover
- 12 months on our workmanship
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
What sealant work can’t fix
Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. It won’t fix:
- Water coming in from the roof or rainwater goods
- Glazing that needs replacing
- Leaks through the frame itself rather than the perimeter
If in doubt, ring 01277 525 020 or email us and we will say what we think.
Where we work in Sidlesham
- Communal kitchens and washrooms
- Communal entrances and stairwells
- External wall and movement joints
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- Balcony and threshold joints
After the work
Regular inspection catches problems early. Specifically:
- Reduce knocks to communal area joints
- Start inspections with the most exposed faces
- Check sealant joints during planned building inspections
- Encourage occupiers to report problems at frames
If a joint we sealed fails within 12 months, tell us and we’ll look at it. After that, regular inspection keeps the programme on track.
Water getting in round frames can damage plaster, decoration and the frames themselves. Resealing early keeps the job small.
Also near Sidlesham
What else we do in Sidlesham
FAQs: Sidlesham
Is Sidlesham off your patch?
No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Good photos up front let us bring everything on the first visit.
Will you take on work at estates like Enborne Business Park, close to Sidlesham?
Yes. We cover Sidlesham and the area around it, including industrial estates, business parks and retail parks such as Enborne Business Park. Send details of the unit and the work through our quote form for a quick quote.
Is any job too small?
Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.
Can you reseal a whole block or estate?
We can. We survey and price each building, then work through them in order, and the programme can start with the worst.
Do you check for asbestos in old sealant?
We don’t remove asbestos-containing materials. Anything suspect is tested before we carry on in line with the dutyholder’s asbestos management.
Which sealant will you use?
Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
Do you guarantee the mastic work?
Our workmanship carries a 12-month guarantee, backed by public liability insurance.
Blocks and managed buildings in Sidlesham
Sidlesham sits close to the coast, within about 1 mile. Sea-facing elevations take driven rain and salt, and their mastic shows it before the sheltered sides do, so it’s worth inspecting those sides more often. Sidlesham lies roughly 58 miles out from central London. Managed blocks of flats are a big part of commuter-belt property; their frame mastic often ages block-wide.
Blocks of flats and mixed-use buildings often cluster around stations such as Chichester station (3.9 miles north of Sidlesham) and their window and balcony mastic tends to age at the same rate across a building. For a school such as Sidlesham Primary School, perimeter mastic on windows and doors is a holiday job.
Sidlesham is about 3 miles north of Selsey, in West Sussex. Any commercial site in Sidlesham is covered, for single jobs and planned programmes alike. Across West Sussex, 373 places are covered, Sidlesham among them. Portsmouth is covered too, some 13 miles away.
We cover the PO20 postcode districts. We cover commercial and managed buildings on Rookery Lane, Selsey Road and Manhood Lane. Sidlesham sits on or close to the B2145, which helps when planning parking and deliveries for the job. Just outside Sidlesham, we also work in Keynor Estate (1 mile south-west), Street End (1 mile north), Sidlesham Common (1 mile north), Fisher (2 miles north-east) and Church Norton (2 miles south). Nearby towns on our patch include Bognor Regis (4 miles east), Chichester (4 miles north), Selsey (3 miles south), Littlehampton (11 miles east), Rustington (12 miles east) and Angmering (14 miles east).
Local landmarks in Sidlesham
Sidlesham’s nearest station is Chichester station, about 3.9 miles north. Other landmarks nearby include St Richard's Hospital (4.7 miles north) and Chichester Castle (4.4 miles north).
On site: what to expect
Diagnose, treat, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. For a building around Sidlesham, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.
- 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.
- Failed sealant is removed and the faces prepared.
- Joints are resealed and tooled.
- Each building is checked and signed off with the 12-month guarantee.
Before we start on site
- Point out parking and an unloading spot
- Warn occupants and staff about the work
- Tell us your opening times and when work is allowed
Request a quote
Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. If you have questions first, give us a call on 01277 525 020 or send details through our quote form.
Related advice
Commercial clients in Sidlesham
We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Sidlesham. Several sites can go on one quote, so there’s one set of paperwork to deal with.
We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Sidlesham can form part of a wider programme across West Sussex.
Signs you need mastic sealing in Sidlesham
Topping up old mastic is a common shortcut. New silicone has nothing to grip on old silicone, so these repairs rarely last.
If one of these sounds familiar, it’s time for a closer look:
- Draught complaints from residents or tenants
- Brittle perimeter mastic across a building
- Mastic failing across several blocks on an estate
- A mix of products and colours from past repairs
Student accommodation around universities such as University of Chichester, 4.1 miles to the north-east of Sidlesham, is usually managed block by block, which suits a planned mastic programme.
What to look for in a quote
- How they handle RAMS and site documents
- Which product they’ll use, and why it suits the joint
- Are they CHAS accredited or on Constructionline?
- How long is the guarantee, and what does it include?