The Mastic Doctor team standing beside their branded vans outside an office building
West Sussex · England

Mastic sealing for building owners and managing agents in East Lavant, West Sussex

Need mastic sealing in East Lavant? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.

  • The same joint failures repeated across a portfolio
  • Old repairs sealed over failed mastic
  • Cracked, hardened mastic round windows on a block
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
Constructionline member
£5m PL insurance

Need mastic sealing in East Lavant?

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Mastic sealing in East Lavant

Mastic Doctor has sealed joints on commercial and residential blocks since 2005. Our applicators are CSCS-carded, and the work is backed by public liability insurance. Resealed mastic joints in East Lavant carry our 12-month guarantee. We work on balcony and threshold joints, window and door perimeters on blocks and shopfronts below residential blocks, and the failures we’re asked to look at most are a mix of products and colours from past repairs and damp patches beside frames. One point of contact handles commercial sealant work in East Lavant from the first photographs to the final walk-round, whether it’s one building or several.

For buildings around smaller places like East Lavant, we group work so one trip covers it. Send photos of the frames and joints and we’ll give a fixed quote.

We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.

Location
East Lavant (PO18)
Region
West Sussex
Guarantee
12 months on our workmanship
Quotes
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

East Lavant: questions and answers

Is East Lavant too far out for you?

Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.

Does your area include sites such as Summersdale Retail Park, near East Lavant?

Yes, sites like Summersdale Retail Park are within our area, along with the rest of East Lavant. To start, just give us a call on 01277 525 020 or send photos by email with the unit, the joints involved and your access times.

Will residents or tenants be disturbed?

Occupiers stay in the building throughout. We flag any areas that need internal access well before the dates so you can arrange it with occupiers.

When is resealing likely to be due?

It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.

Can weather delay the job?

Outside, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.

How do you choose the sealant?

Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

Will you come and look before quoting?

Photos, drawings or a schedule are often enough to quote. Where they aren’t, we arrange a site visit.

Our process

At the end of each section, we remove the tape, clean down and inspect every joint, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. Jobs in and around smaller places like East Lavant are usually planned as a single visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.

  1. We inspect the joints, building by building, and record what has failed and why.
  2. You get a fixed quote, priced per building where that helps your budgeting.
  3. Dates, areas and access are agreed so residents or tenants can be told in advance.
  4. Old sealant is stripped and each face prepared back to firm material.
  5. Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
  6. Finished joints are looked over and the 12-month guarantee confirmed.

Getting the site ready

  • Make sure the joints can be reached
  • Tell staff and tenants when we’ll be in
  • Send your site hours and access windows

Get a fixed quote

The quickest route to a quote is a few photographs and the site postcode. Upload them with the quote form, or give us a call on 01277 525 020 or email drawings and photos to discuss it first.

Ask for a quote

Advice

Should maintenance staff do it?

Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

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.

Aftercare for building managers

Cleaning and maintenance staff play a part too. Share these points with them:

  • Avoid piecemeal callouts where you can
  • Share the asbestos register when you send details
  • Reduce knocks to communal area joints
  • Ask residents or tenants to report leaks and draughts early

Protect entrance and corridor joints from knocks where possible. Damage at low level is the most common reason communal joints fail early.

Failed mastic often goes unnoticed until heavy rain finds it. Acting at the first signs keeps it a straightforward reseal and the complaints that come with it.

What we can’t put right

Before quoting, we check that sealant is the right answer. It isn’t the answer for:

  • Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)
  • Leaks from above rather than through a joint
  • Materials that need asbestos testing before work

If in doubt, call 01277 525 020 or send details through our quote form and we will say what we think.

Joints and surfaces we work on

  • External wall and movement joints
  • Shopfronts below residential blocks
  • Communal kitchens and washrooms
  • Balcony and threshold joints
  • Window and door perimeters on blocks
  • Communal entrances and stairwells

Blocks and managed buildings in East Lavant

There are two care or nursing homes within about 2 miles of East Lavant. Owners of care premises can bring window and door mastic into a phased programme planned around the home. East Lavant sits in one of the drier corners of the country, the South East. 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.

Schools and community buildings such as Lavant CofE Primary School need frame and external mastic kept sound like any building. Student accommodation around universities such as University of Chichester (1.6 miles south of East Lavant) is typically managed block by block, which suits a planned mastic programme.

East Lavant is about 2 miles north of Chichester, in West Sussex. Commercial clients in East Lavant use us for work on mastic joints, as part of our coverage of West Sussex. We work across 373 places in West Sussex, from busy centres to rural villages. For work in that direction, see our Portsmouth page.

Work on mastic joints is covered throughout PO18, for business premises of every kind. Streets here include Pook Lane, Fordwater Road and Shop Lane, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Mid Lavant (1 mile north-west), Westerton (2 miles south-east), Westhampnett (2 miles south-east), Waterbeach (2 miles east) and Maudlin (2 miles south-east) for mastic joints. A short drive away, we cover Bognor Regis (7 miles south-east), Selsey (9 miles south), Littlehampton (11 miles east), Rustington (12 miles east), Storrington (15 miles east) and Angmering (13 miles east).

Landmarks near East Lavant

Locally, jobs take us to sites close to The Royal Oak Public House and Bishop Luffa School, among other places. East Lavant’s nearest station is Chichester station, about 2.5 miles south. Nearby you will also find Chichester Castle (2 miles south) and The Chichester City Museum (2.1 miles south). The countryside around East Lavant includes Stoke Down and Kingley Vale National Nature Reserve.

Map of East Lavant © OpenStreetMap contributors

What the job involves on each surface

External movement joints

Failed sealant is removed, backing rod inserted to control depth and the joint resealed with a grade whose movement class fits.

Estate-wide resealing programmes

Priority order can follow condition, complaints or your maintenance plan. Quotes can be per block or for the full programme.

Common problems we fix in East Lavant

Topping up old mastic is a common shortcut. New silicone has nothing to grip on old silicone, so these repairs rarely last.

Common reasons buildings call us in:

  • Failed external movement joints
  • Complaints coming in block by block
  • Old repairs sealed over failed mastic
  • Water getting in round frames after rain

Landlords with units on estates such as Summersdale Retail Park, 0.7 miles to the south-west of East Lavant, can bring frame, door and external mastic across several units into one programme.

What to look for in a quote

  • Do they follow the manufacturer’s priming guidance?
  • How joint depth will be controlled
  • Proof of insurance
  • How they handle RAMS and site documents

Our contractor checklist

Accreditations

Trusted. Accredited. Insured.