Mastic man in Barnet

Your local mastic man for Barnet

Barnet is a big borough, stretching from Golders Green and Hendon in the south to Chipping Barnet, Totteridge and Arkley out by the Green Belt. It takes in leafy suburbs, town centres such as Finchley, Whetstone and Edgware, and some of north London’s largest new housing areas. Mr Mastic covers it all from our base in Crawley.

Many Barnet homes have well-finished bathrooms and kitchens, so a sloppy bead of the wrong colour stands out. We offer colour-matched resealing so new silicone sits neatly against stone, tile or worktop. As always, the old sealant is removed completely, the joint is cleaned and dried, and the new bead is tooled to a clean, even finish.

Garden suburb houses, 1930s semis and big regeneration schemes

Hampstead Garden Suburb, founded in 1906 with a plan by Barry Parker and Raymond Unwin, is the borough’s most famous housing area. It is a low-density suburb of houses with their own gardens on wide, tree-lined roads, and owners need the Hampstead Garden Suburb Trust’s approval before changing a property’s outside appearance. That makes careful, discreet external mastic important.

Much of the rest of the borough grew along the railway and the Northern line, with large areas of suburban semis and terraces in Finchley, Hendon, Mill Hill and Edgware. Here we mostly replace failed mastic around replacement windows and reseal family bathrooms that have been refitted once or twice. Some older institutions have become homes too, including the former Friern Hospital in Friern Barnet, now flats.

The west of the borough is changing fastest. Colindale’s households almost doubled between 2011 and 2021 as apartment blocks went up, Grahame Park, a 1960s and 1970s estate on part of the old Hendon Aerodrome, is being rebuilt with 2,088 new homes, and Brent Cross Town is planned for thousands more. New homes often need their sealant redone after settling; see our new build mastic page.

Sealant services across Barnet

• Bathroom & kitchen resealing: Bathroom and kitchen joints taken back to a clean, dry surface and finished with fresh anti-fungal silicone that won’t lift.
• Window & door mastic: Frame perimeters inside and out resealed with flexible, colour-matched sealant, with backing rod where the gap is deep.
• Commercial & hotel sealant: Sealant programmes for offices, hotels, care settings and schools, with early or late working where it helps.
• Remedial sealant & repairs: Leaks and lifting beads from earlier sealant jobs put right, starting with finding out why they failed.
• Fire-rated sealant: Fire-rated and intumescent sealant around gaps, frames and service penetrations, to the product’s tested details.
• External & façade joints: Expansion joints in brick, render and cladding cut out and renewed at the right depth so they can move without splitting.
• New-build mastic & snagging: New-build bathrooms, kitchens and frames resealed where the original sealant has cracked as the house settles.
• Floor & skirting joints: Floor and skirting joints in homes, shops and warehouses sealed neatly and to the right depth.
• Regrouting: Crumbling grout in showers and wet areas raked out and refilled, so water stays out of the wall behind.
• Glazing & conservatory sealant: Conservatory, rooflight, glass panel and shower screen joints resealed with glazing silicone.
• Gutter, fascia & soffit sealing: Exterior joints at gutters, fascias and soffits resealed to stop drips and staining down the wall.
• Sand mastic for sash & case windows: Sash and case window surrounds in stone and brick re-pointed with traditional sand mastic.

What you get with Mr Mastic in Barnet

A good reseal should look as if it’s always been there. Mr Mastic brings more than two decades of experience to that, along with ARBOMaster approved applicator status and a choice of Arbo and Everbuild sealants in the colours a finished bathroom needs. We’re fully insured, have completed over 2,847 projects and hold a 4.9-star rating on Google from 180+ five-star reviews. If you’re weighing up who to call, our guide to choosing a mastic man may help. You get a clear quote before we start and a one-year guarantee.

Around Barnet

From the centre, the nearest railway station is New Barnet station. Local landmarks include Spires Shopping Centre (0.9 miles north-west) and Francis Skaryna Belarusian Library and Museum (2.1 miles south). Typical jobs near the centre are in homes and businesses around Grasvenor Avenue Infant School, Queen Elizabeth's Girls' School, Susi Earnshaw Theatre School and St John's United Reformed Church. For open space, Greenhill Gardens and Darland's Lake are close by.