Hampshire · England

Upper Common Floor Joint Sealing

Floor joints in Upper Common need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.

  • Gaps between floors and kitchen plinths
  • Rigid edge joints in tiled floors
  • Open joints that fill with dirt

Trusted floor joint sealing in Upper Common

Floor joint sealing in Upper Common, done properly

A threshold joint has to cope with feet, movement and sometimes water. We seal them with a flexible sealant suited to the floor finishes either side so the joint stays neat. Typical jobs include gaps opening between the floor and skirting and dirt and water collecting in open floor joints, across thresholds, commercial floors and skirting boards.

In a village or hamlet like Upper Common, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.

We stand behind the work with a one-year guarantee.

Where
Upper Common (RG25)
Wider area
Hampshire
Guarantee
A year, on every job
Price
A clear quote up front
Phone
0345 464 0079
Last updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

Signs you need floor joint sealing in Upper Common

A floor laid tight to the walls has no room to move. It pushes against the walls and skirting as it expands.

Most people get in touch after spotting one of these:

  • Worn sealant at door thresholds
  • Open gaps along the bottom of skirting boards
  • Cracked caulk along skirting in bathrooms and kitchens
  • Open joints around bathroom floor edges

Letting a property close to Basingstoke station? Then open skirting and floor joints collect dirt and water, so seal them while the property is empty.

Before you book anyone

  • Is VAT in the price?
  • Whether they’re fully insured
  • Whether they seal over old material or remove it
  • What product goes in the joint

10 questions to ask before booking

What affects the cost of floor joint sealing

Every job gets its own quote. These are the things that affect it:

  • The product the joint needs
  • How much old sealant there is and how hard it is to remove
  • Mould in or behind the old joints
  • How many areas need sealing

Combining jobs into one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.

Asking for a quote

To make quoting easier, let us know:

  • The rough size of the job
  • Pictures of the joints, sent by email
  • What’s wrong with the joints now
  • Where the job is, and your postcode

Getting a quote is simple: let us know the job and the location. A few pictures by email make the job easier to understand.

When it is not the sealant

We will always be straight with you, so here’s what new sealant will not do:

  • Tiles that have lifted or broken
  • Concrete repairs beyond the joint
  • Structural movement or subsidence

If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.

Joints and surfaces we work on

  • Skirting boards
  • Concrete floor joints
  • Thresholds
  • Commercial floors
  • Tiled floors
  • Wet room & bathroom floors

How to look after the new joints

No joint lasts for ever, but care makes a real difference. Our tips:

  • Act on grout cracks that run in a straight line
  • Ask before painting over a sealed joint
  • Avoid caulk in bathrooms and kitchens
  • Walk round the room once a year and look at the edges

Do not paint over silicone. If the joint will be painted, tell us beforehand so we use a paintable sealant.

Small gaps are quick to seal. Left alone, they collect dirt and widen.

Work for landlords, hotels and businesses

If you manage several properties in or around Upper Common, jobs at different addresses can go on one quote. Send us the addresses and the work at each.

Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.

How the visit works

We bring everything the job needs with us. Once we’ve agreed what’s being done, the area is protected and the work begins. It normally takes a few hours for most rooms, longer for large commercial floors. Somewhere like Upper Common needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. First, the floor type, the gap and the traffic are checked.
  2. We remove what’s in the joint now.
  3. The joint is vacuumed clean and backing fitted where needed.
  4. The chosen sealant goes in, coloured to suit the floor.
  5. The joint is tooled neatly and the cure time explained.

Getting ready for the visit

  • Tell us about any previous sealing or DIY attempts
  • Tell us about any water getting in
  • Try not to wet indoor joints just before the visit

Get a quote

Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or email us with the details.

Get a quick quote

Related advice

Floor joint sealing around Upper Common

Across Hampshire, floors range from older suspended timber floors to concrete slabs in newer homes and commercial units, and each moves in its own way. That is why the skirting and threshold joints need a flexible seal.

If you look after a church, hall or community building such as Church of St. Martin, joints in its floors, skirtings and thresholds need resealing as they wear.

Upper Common is about 4 miles south of Basingstoke, in Hampshire. Wherever you are in the RG25 postcode area, our applicators can take on floor joint sealing. Across Hampshire, we cover 683 places, Upper Common among them. You can also see our page for Reading, about 18 miles away.

All of RG25 is within our area for floor joint sealing. If you are just outside Upper Common, we cover Ellisfield (1 mile north-east), Cliddesden (2 miles north), Nashes Green (3 miles east), Viables (3 miles north) and Eastrop (4 miles north). Within a short drive, we also cover Basingstoke (4 miles north), Winchester (14 miles south-west), Fleet (12 miles north-east), Aldershot (15 miles east), Alton (6 miles south-east) and Petersfield (15 miles south-east).

Around Upper Common

Locally, jobs take us to homes and businesses close to The Fox pub, among other places. Upper Common’s nearest station is Basingstoke station, about 4.4 miles north. A little further out are Barton Castle (4.6 miles south) and Gliding Heritage Centre (3.5 miles south-east). Open spaces near Upper Common include Farleigh Hill.

Map of Upper Common © OpenStreetMap contributors

Upper Common: your questions answered

Do you cover smaller places like Upper Common?

Yes. Upper Common is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.

I let a flat near Basingstoke station. Can you help?

Yes, rental work is part of what we do. Just ring 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.

Why does the gap under my skirting keep coming back?

Movement from drying timber and settling floors. Rigid fillers split, so we use a flexible sealant.

Is there any odour?

There can be a smell while the sealant cures, but it fades. Ventilation helps.

Do you offer different sealant colours?

Normally, yes. White, clear and grey are common, and other colours are available for many products, and we will agree it with you first.

Can I do it myself?

That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.

Will it make a mess?

No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.

My floor grout keeps cracking in a line. Can you help?

Often, yes, where it suits the floor. The grout is raked out and replaced with a flexible sealant in a colour to suit so the floor can move.

Different surfaces, different methods

Thresholds

Where a tiled floor meets timber or carpet, the joint takes movement from both sides. A flexible sealant bridges them.

Concrete floor joints

Old filler, dust and debris are cleaned out of the joint first. We fit backing where needed.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job