Mastic sealing for building owners and managing agents in Upperton, West Sussex
Work needed on a mastic joint in Upperton? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Failed external movement joints
- A mix of products and colours from past repairs
- Cracked, hardened mastic round windows on a block
Need mastic sealing in Upperton?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
FAQs: Upperton
Is Hampers Common Industrial Estate, near Upperton, within your area?
Yes. Estates, retail parks and business parks around Upperton, Hampers Common Industrial Estate among them, are all within reach. Photos and a short description are enough for a first look.
Is Upperton too far out for you?
No. Small places get the same service as large ones. We work across Greater London and the South East. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.
Does the weather affect the work?
For external joints, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.
Do you work with property factors and landlords?
We do. Most of our mastic sealing is for agents, factors, housing associations and portfolio landlords and work can be quoted per building or as a whole.
How do I request a quote?
It works in four steps: send details, get a quote, we seal, guaranteed. The first step only needs photographs and a postcode.
Will residents or tenants be disturbed?
We plan around people living or working in the building. We agree the programme so you can notify occupiers, and entrances stay in use.
Which sealant will you use?
The specification comes first, if there is one. Without one, the joint decides: its movement, its surfaces and what it has to cope with.
Mastic sealing in Upperton, done properly
Managing agents and housing associations normally need paperwork before anyone starts. For documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We are a Constructionline member and CHAS accredited, and we carry public liability insurance. If you are dealing with complaints coming in block by block and draughts at frames across a block, we can help, on external wall and movement joints, communal entrances and stairwells and shopfronts below residential blocks alike. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Upperton it comes down to the same thing: the right product in a properly prepared joint.
Owners and agents with buildings around smaller places such as Upperton 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
- Upperton (GU28)
- Wider area
- West Sussex
- Cover
- 12 months on every job
- Price
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
How the quote is worked out
What shapes the price:
- Site requirements such as inductions and permits
- Travel to remote or island sites
- The product specified
- Working within restricted access windows
We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote.
What to include in your enquiry
It doesn’t need to be a full survey. These details are enough to start:
- Rough lengths or quantities, or drawings if you have them
- Anything awkward about access or site hours
- A wide shot and a close-up of the area
- What the building is and how it’s used
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, give us a call on 01277 525 020 or use the quote form.
Looking after buildings in and around Upperton
Upperton sits in one of the drier corners of the country, the South East. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first. At about 42 miles from central London, Upperton is within reach of the capital. Commuter-belt towns tend to have plenty of managed blocks near 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 Hampers Common Industrial Estate, 1.1 miles to the east of Upperton, one programme can deal with frame and external mastic across the lot. Trustees of buildings like The Parish Church of All Hallows can bring frame and external mastic into a planned maintenance list.
Upperton is about 12 miles north-east of Chichester, in West Sussex. We cover commercial sites throughout Upperton. Across West Sussex, 373 places are covered, including Upperton. For work in that direction, see our Portsmouth page.
If you need mastic sealing in GU28, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Nearby places we also cover include Tillington (1 mile south-east), Hampers Green (1 mile east), River (1 mile west), Petworth (1 mile south-east) and Rotherbridge (2 miles south). Nearby towns on our patch include Horsham (14 miles east), Bognor Regis (14 miles south), Chichester (12 miles south-west), Littlehampton (14 miles south), Rustington (14 miles south-east) and Storrington (10 miles south-east).
Local landmarks in Upperton
Nearby you will also find Midhurst Community Hospital (4.3 miles west) and Coultershaw Heritage Site (2.2 miles south). Green spaces nearby include Graffham Common and Blackdown.
Commercial clients in Upperton
Hotels, schools, healthcare sites, offices and retail units come to us directly as well. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.
Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, and each stage is agreed with your contact.
Also near Upperton
Other services in Upperton
When to call us in Upperton
We often find joints filled solid with no backing rod so the mastic is bonded on three sides. That three-sided adhesion stops it stretching and splits as the building moves.
Common reasons buildings call us in:
- Draughts at frames across a block
- Old repairs sealed over failed mastic
- The same joint failures repeated across a portfolio
- No planned programme for sealant
Historic properties like Petworth House (1.2 miles south-east of Upperton) show the age of some local stock, where frame mastic must suit soft brick or stone.
Questions to ask before you book
- What the guarantee covers, and for how long
- How they’ll work around occupants
- The named product and why it was chosen
- Proof of insurance
From enquiry to sign-off
Occupied buildings need a little choreography. We sign and contain the area we are in, keep walkways clear and work section by section so the rest of the building stays in use. If others near Upperton need work, visits can be combined. You will have a fixed quote before work starts.
- Each block or building is walked and the failed joints recorded with the likely cause.
- You get a fixed quote, priced per building where that helps your budgeting.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- Failed mastic is removed and the faces taken back to sound, dry material.
- Backing rod and primer go in where the joint and the product need them, then new sealant is applied and tooled.
- Finished joints are looked over and the 12-month guarantee confirmed.
Before we start on site
- Have the specification and drawings to hand
- Tell us which areas need to stay in use
- Share the asbestos register for older buildings
Getting a fixed quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.
Related advice
Doing it in-house
Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.
When something else is needed
Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:
- Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
- Failed window or door frames, which need a window contractor
- Substrate edges that need repairing first
If you are not sure, just speak to us on 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer.
Joints and surfaces we work on
- External wall and movement joints
- Balcony and threshold joints
- Shopfronts below residential blocks
- Communal kitchens and washrooms
- Communal entrances and stairwells
- Window and door perimeters on blocks