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

Expansion Joint Sealing in Longmoor

Expansion and movement joint sealing in walls, decks and floors throughout Longmoor and nearby, by CSCS-carded applicators. CHAS accredited and fully insured.

  • Expansion joints filled with dirt and stones
  • Chipped joint edges on forklift routes
  • Expansion joints split through the centre of the bead
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS accredited
£5m public liability

Expansion joint sealing for Longmoor sites

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

How the job changes by surface

Joints between different materials

Different materials meeting at a joint rarely move in step. The product must bond to both substrates and cope with the movement priming where the maker calls for it.

Concrete and precast panel joints

Precast and concrete panel joints move daily. The sealant needs the right movement capability and a controlled depth.

Expansion joint sealing in Longmoor

Few joints take as much punishment as those in a car park. Wheel loads, grit and de-icing salts attack the seal and the concrete either side, so failed seals soon lead to leaks onto the level below and broken edges. We reseal deck and ramp joints with a trafficable sealant chosen for the movement, phasing bays so the car park can stay in use. We work on cladding panel joints, blockwork control joints and car park decks and ramps, and the failures we’re asked to look at most are arrises breaking up along floor joints and sealant peeling off one face of the joint. One point of contact handles commercial sealant work in Longmoor from the first photographs to the final walk-round, for single jobs and planned programmes alike.

Jobs around smaller places like Longmoor are planned so the whole job is done in one visit. Note joint widths and the traffic that uses them, and we’ll take it from there.

What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

Where
Longmoor (GU33)
Region
Hampshire
Guarantee
A 12-month guarantee
Quote
Fixed quote, scope in writing
Call
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

On site: what to expect

On arrival, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before any cutting starts, and the work usually takes a short visit for a handful of joints, or several days or more for a car park deck or long runs of facade joints. Rural sites near Longmoor may need directions, gate codes or a contact on site. Add it to your enquiry and we will build it into the plan.

  1. We assess the joints on site or from photographs, noting widths and how each has failed.
  2. You receive a fixed quote stating the product and the movement it is rated for.
  3. Phasing is agreed so decks, floors or entrances can stay in use where needed.
  4. The failed seal is cut out and both joint faces cleaned back to sound material.
  5. Backing rod or bond-breaker sets the depth, primer goes on where specified, and the sealant is applied and tooled.
  6. We check each joint with you, confirm the cure time and sign off under our 12-month guarantee.

Preparing the site

  • Send any specification or drawings in advance
  • Tell us what induction or permit system the site runs
  • For older buildings, check the asbestos register before work

Getting a fixed quote

The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or speak to us on 01277 525 020 or email the details over if you’d rather talk the job through.

Ask for a quote

Advice

Joints that move: notes for Longmoor

Longmoor has at least three named business or industrial parks inside a 3-mile radius. That puts plenty of warehouse floors, service yards and car parks close by, all with joints under traffic. Longmoor is in the South East, one of the UK’s drier regions. External slab and deck joints still need a dry, clean joint to seal, and gritting in cold spells finds its way into open joints.

Hospitals like Chase Hospital (to the north of Longmoor) have multi-storey or surface car parks whose joints carry vehicles round the clock. On a site such as Longmoor Enterprise Park, less than half a mile west of Longmoor, the movement joints are in car park slabs, paving and building elevations. Schools such as Greatham Primary School have movement joints in their walls and floors that are easy to overlook.

Longmoor is about 3 miles south of Bordon, in Hampshire. We cover Longmoor, with the same fixed quotes and 12-month guarantee as everywhere else. We work across 723 places in Hampshire. Our Portsmouth page has more on work in that area, about 20 miles away.

If you need expansion joint sealing in GU33, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. If your site is on Woolmer Road, Roberts Road and Methuen Road or close by, send details and we will quote for movement joints. Sites close to Longmoor are covered too, including Greatham (1 mile west), Woolmer (1 mile north-west), Liss Forest (2 miles south-west), The Mint (2 miles south) and Blackmoor (2 miles north-west). Further afield, our area takes in Havant (15 miles south), Fleet (14 miles north), Horndean (13 miles south-west), Aldershot (13 miles north), Alton (7 miles north-west) and Waterlooville (15 miles south-west).

What’s near Longmoor

Longmoor’s nearest station is Liss station, about 2.3 miles south-west. Well-known places in the area include The Romany Museum (3.4 miles north-west) and Chase Community Hospital (2.3 miles north). Green spaces nearby include Wheeler's Down and Liss Riverside Railway Walk North.

Map of Longmoor © OpenStreetMap contributors

Honest limits

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

  • Leaks coming from the membrane rather than the joint seal
  • Damaged metal nosings or cover plates over a joint
  • Cracking or settlement that calls for an engineer’s assessment

If in doubt, call 01277 525 020 or email a schedule or drawings and we will say what we think.

Joints and surfaces we work on

  • Cladding panel joints
  • Precast concrete panel joints
  • Blockwork control joints
  • Car park decks and ramps
  • Brickwork movement joints
  • Podiums and floor movement joints

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.

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Building owners, agents and FMs in Longmoor

We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Longmoor can form part of a wider programme.

If you look after buildings for someone else, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.

Longmoor: questions and answers

Is a smaller place like Longmoor outside your area?

Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Good photographs up front let us bring everything on the first visit.

Do you cover business parks and estates near Longmoor, such as Longmoor Enterprise Park?

Yes, sites like Longmoor Enterprise Park are within our area, along with the rest of Longmoor. A few photographs and the unit address let us price the work.

How long does movement joint sealing take?

Expect a day or so for a modest run of joints, and longer where decks, ramps or floors are done in phases. We will confirm when each area can be used again.

How do I request a quote?

It works in four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photos and a postcode.

What site paperwork can you supply?

Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we will confirm them with the quote.

Is movement joint sealing guaranteed?

Each job is backed by a 12-month guarantee on the workmanship. Damage from later works or traffic loads outside the joint’s design isn’t a workmanship fault.

Can you work to our specification?

Yes. Send it with your enquiry, and the quote will be based on it.

Why it’s worth doing now in Longmoor

A torn seal left alone typically gets worse. Grit and water fill the gap and the material either side breaks up. Resealing early keeps the work to sealant. Around Longmoor, it’s better to renew all the failing joints at once, rather than one at a time. Photos of every joint help us quote for the whole job.

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.

Why appoint us

  • 12-month guarantee on workmanship
  • A fixed quote before work starts
  • Matching to RAL references, product permitting
  • Work carried out by CSCS-carded applicators

Take a look at how commercial sealant jobs are priced or how we’re accredited.

Accreditations

Trusted. Accredited. Insured.