Construction and new-build mastic in Flansham, West Sussex
Construction mastic for Flansham, from a contractor working since 2005. Fully insured and CHAS accredited.
- New external sealant already peeling away
- Different trades sealing to different standards
- Frame gaps too wide for sealant alone
Construction mastic across Flansham
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
About our construction mastic in Flansham
External mastic depends on the weather in a way most internal trades don’t. Each sealant has a temperature range, and damp, frost or condensation on frames stops work so it helps to sequence elevations with some flexibility. Internal sealing often fills those days. We work on internal decorators’ caulk, floor and skirting junctions and brick and block movement joints, and what we are called in for most is early adhesion failures on new external joints and internal caulk splitting as the building dries out. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Flansham, that means joint design, primers and backing rod as standard.
In the countryside around places like Flansham, conversion schemes put new frames into old stone, flint, brick or timber. A product that grips an irregular face, with a colour that suits the building’s character, is usually what’s needed.
Our workmanship is guaranteed for 12 months, in Flansham as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Location
- Flansham (PO22)
- Region
- West Sussex
- Cover
- 12 months on every job
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
Honest limits
A proper diagnosis includes knowing what sealant can’t do. We will tell you if the real problem is one of these:
- Rework caused by others damaging completed areas
- Specifying the product where the designer hasn’t
- Approving fire stopping as compliant
Not sure which it is? You can call 01277 525 020 or email drawings and photos and we will tell you honestly before you book.
Joints and surfaces we work on
- Floor and skirting junctions
- Internal decorators’ caulk
- Window and door perimeters
- Cladding and panel joints
- Brick and block movement joints
- Sanitary and kitchen joints
Commercial clients in Flansham
Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.
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, plus a 12-month guarantee.
Aftercare for building managers
A few simple habits keep the new joints working:
- Brief the final clean team to avoid blades near sealant
- Brief following trades on areas that have been sealed
- Don’t force external sealing on a damp or frosty day
- Stick to the specified sealant rather than a generic substitute
Expect some settlement in the first months. Flexible sealants in the right joints handle normal movement while rigid fillers and caulk can crack where movement is larger. If that happens, let us know.
Sealing outside when the joint is damp or too cold leads to poor adhesion. Holding off until conditions suit avoids callbacks, so we plan external work with that in mind.
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.
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Our process
Inspect, seal, 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 the job ends with a walk round and sign-off. Jobs in and around smaller places like Flansham are normally planned as a single visit, so we ask for photographs and rough sizes first. That way the right products come on the day.
- Drawings, the sealant specification and your programme come to us for pricing.
- We return a fixed quote that ties the mastic package to your programme.
- Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
- Work follows the programme, area by area, as rooms and elevations become ready.
- Joints are cleaned, primed where the maker requires it, backed and sealed to the specification.
- Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.
Preparing the site
- Confirm the product named in the specification
- Let us know about inductions and permits
- Send your site hours and access windows
Ask for a quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.
Advice
Construction mastic in Flansham: the local picture
Flansham lies within about 2 miles of the sea. Coastal exposure means perimeter and cladding joints work harder than on an inland job, so we check the specified product suits the exposure before the first bead. Rainfall across the South East, Flansham included, is lower than in many parts of the UK. Even so, frost and condensation on steel and glass are common on winter mornings, so the external programme keeps a little slack.
New wings at hospitals like Bognor Regis War Memorial Hospital, 1.7 miles to the south-west of Flansham, bring long runs of window and panel joints to seal. New units and refits on sites such as Southern Cross Trading Estate (1.1 miles west of Flansham) need their panel and perimeter joints sealed to the specification. Hotel extensions and refits, at places such as Ancton House Hotel, which lies east of Flansham, typically run between busy periods, so the sealing is squeezed into short windows.
Flansham is about 2 miles north-east of Bognor Regis, in West Sussex. Flansham sits inside our coverage and the rest of West Sussex, with the same fixed quotes and 12-month guarantee as everywhere else. 373 places across West Sussex fall within our area, including Flansham. Portsmouth is covered too, around 19 miles from Flansham.
Commercial sites across PO22 are covered. We also cover Bilsham (1 mile east), Lidsey (2 miles north-west), Shripney (2 miles west), Yapton (2 miles north-east) and Barnham (2 miles north) for mastic packages. Nearby towns on our patch include Worthing (11 miles east), Chichester (7 miles west), Selsey (8 miles south-west), Littlehampton (5 miles east), Lancing (14 miles east) and Rustington (6 miles east).
What’s near Flansham
Locally, jobs take us to sites close to Felpham Community College and The Brooks Local Nature Reserve. The nearest railway station is Barnham station, roughly 1.9 miles north of the centre. Nearby you’ll also find Tote Copse Castle (3.1 miles north-west) and Bognor Regis Museum (2.3 miles south-west).
Places near Flansham
More services for Flansham
Why it’s worth doing now in Flansham
Some packages split mastic across the window fitter, kitchen fitter and plumber. The result tends to be uneven finishes and arguments about who should seal what. A single mastic package gives one point of responsibility. Around Flansham, it’s better to renew all the failing joints at once. Photos of every joint help us quote for the whole job.
The specified product makes a difference, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site rules also count.
Why clients in Flansham choose us
- CHAS accredited contractor
- Products installed to the manufacturer’s instructions
- Clear, fixed quotes
- A range of standard colours, depending on the product
Read our cost guide and how we’re accredited.
FAQs: Flansham
Can you work around term dates at a campus such as University of Chichester (Bognor Campus)?
Yes. Education sites normally want the work in vacations or in phases during term, and we plan to suit. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.
Can being near the sea in Flansham affect the sealant we need?
It can, yes: buildings near the sea take more wind-driven rain, and salt in the air nearer the shore. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.
What joints do you seal on a new build?
External and internal frame perimeters, caulking where it’s specified, sanitary silicone, kitchen joints and snagging before handover. We price to the specification and drawings.
Can you quote from photographs?
It depends on the job. Simple work can often be priced from photographs, and bigger or more complex jobs typically get a visit.
Can weather delay the job?
Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.
Do you seal on top of existing 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.
How long does a job like this take?
It depends on the scope, but the work usually takes a day or two on a small fit-out and several weeks on a large multi-storey package. For bigger or phased jobs, we’ll set out a timescale with the quote.