Eco-Renovation UK Heritage Insulation Specialist
Contact us

Home  ›  Our Work  ›  Epsom

Deep retrofit & heat pump ยท Epsom, Surrey

Decarbonising a 1930s Classic with a Full Wood Fibre Wrap & Heat Pump Retrofit

A 1930s detached house taken all the way round: floor, walls and roof, with structural steel going in along the way to open up the ground floor.

The suspended floors came up first, insulated with Gutex wood fibre over Pro Clima Solitex Plus, made airtight with Pro Clima DA membrane and Tescon Vana tape, then reclaimed boards went back down. Steico wood fibre board wrapped the outside, carried into every reveal, round the bays, under the eaves and down to an insulated plinth, finished in breathable silicone render. The roof was insulated with Gutex thermoflex and sarking board with a ventilated cavity above it, then re-tiled. Downpipes, soffits and the porch were all reset to the new wall line.

Photograph Deep renovation and insulation of a 1930s detached house in Epsom, with heat pump integration Deep renovation and insulation of a 1930s detached house in Epsom, with heat pump integration
Adam and his team are the best kind of builders - hard working, paying attention to detail in every circumstance, listening to what you want and genuinely caring about the end result. Their tidying, snagging and completing was second to none. I can't speak too highly of them and we are absolutely thrilled with the end result. High quality work done by people who take pride in what they do.
Genevieve R the client on this project
02Renovation on a 1930s house with External wall insulation, Floor insulation, ready for heat pump installationRenovation on a 1930s house with External wall insulation, Floor insulation, ready for heat pump installation

Renovation on a 1930s house with External wall insulation, Floor insulation, ready for heat pump installation

03Temporary propping for structural worksTemporary propping for structural works

Temporary propping for structural works

04Temporary works, joists cut out for structural steel inserted into ceiling structureTemporary works, joists cut out for structural steel inserted into ceiling structure

Temporary works, joists cut out for structural steel inserted into ceiling structure

05Steelwork installed, props still holding the upper floor structureSteelwork installed, props still holding the upper floor structure

Steelwork installed, props still holding the upper floor structure

06Steel structure installed, joists strengthenedSteel structure installed, joists strengthened

Steel structure installed, joists strengthened

07Suspended floor insulation - floorboard removed, structure is ready for insulation and membraneSuspended floor insulation - floorboard removed, structure is ready for insulation and membrane

Suspended floor insulation - floorboard removed, structure is ready for insulation and membrane

08Telescopic subfloor ventilation installed before external wall insulation and suspended floor insulationTelescopic subfloor ventilation installed before external wall insulation and suspended floor insulation

Telescopic subfloor ventilation installed before external wall insulation and suspended floor insulation

09Suspended floor insulation - Pro Clima Solitex Plus breathable membrane being installed over floor joistsSuspended floor insulation - Pro Clima Solitex Plus breathable membrane being installed over floor joists

Suspended floor insulation - Pro Clima Solitex Plus breathable membrane being installed over floor joists

10Suspended floor insulation, the membrane cut and folded at the wall and floor junctionSuspended floor insulation, the membrane cut and folded at the wall and floor junction

Suspended floor insulation, the membrane cut and folded at the wall and floor junction

11Suspended floor insulation, Pro clima Solitex Plus at floor and wall junction folded and taped over with Tescon Vana tapeSuspended floor insulation, Pro clima Solitex Plus at floor and wall junction folded and taped over with Tescon Vana tape

Suspended floor insulation, Pro clima Solitex Plus at floor and wall junction folded and taped over with Tescon Vana tape

12Suspended floor insulation - Gutex flexible wood fibre insulation being installed between floor joistsSuspended floor insulation - Gutex flexible wood fibre insulation being installed between floor joists

Suspended floor insulation - Gutex flexible wood fibre insulation being installed between floor joists

13Suspended floor insulation with Pro Clima Solitex Plus, Gutex thermoflex wood fibre insulation and Pro Clima DA airtightness membraneSuspended floor insulation with Pro Clima Solitex Plus, Gutex thermoflex wood fibre insulation and Pro Clima DA airtightness membrane

Suspended floor insulation with Pro Clima Solitex Plus, Gutex thermoflex wood fibre insulation and Pro Clima DA airtightness membrane

14Hallway suspended floor is getting insulated with Pro Clima Solitex plus, Gutex thermoflex wood fibre insulation,and Pro Clima DA membraneHallway suspended floor is getting insulated with Pro Clima Solitex plus, Gutex thermoflex wood fibre insulation,and Pro Clima DA membrane

Hallway suspended floor is getting insulated with Pro Clima Solitex plus, Gutex thermoflex wood fibre insulation,and Pro Clima DA membrane

15Suspended floor insulation - Pro Clima DA membrane taped with ProClima airtight tapeSuspended floor insulation - Pro Clima DA membrane taped with ProClima airtight tape

Suspended floor insulation - Pro Clima DA membrane taped with ProClima airtight tape

16Pro Clima DA Airtightness membrane taped at junctions and perimeter with Pro Clima Tescon VanaPro Clima DA Airtightness membrane taped at junctions and perimeter with Pro Clima Tescon Vana

Pro Clima DA Airtightness membrane taped at junctions and perimeter with Pro Clima Tescon Vana

17Reclaimed floor boards are installed onto insulated and airtight floor structureReclaimed floor boards are installed onto insulated and airtight floor structure

Reclaimed floor boards are installed onto insulated and airtight floor structure

18Completed floor insulation with finished floorboardsCompleted floor insulation with finished floorboards

Completed floor insulation with finished floorboards

19Preparation for External wall insulation works, airtightness detail contega solido exo tape used for making the window and fabric junction airtight before wood fibre insulation boards go on the wallsPreparation for External wall insulation works, airtightness detail contega solido exo tape used for making the window and fabric junction airtight before wood fibre insulation boards go on the walls

Preparation for External wall insulation works, airtightness detail contega solido exo tape used for making the window and fabric junction airtight before wood fibre insulation boards go on the walls

20Preparation for external wall insulation - airtightness detail - Contega solido exo tape for window and door to fabric junctionPreparation for external wall insulation - airtightness detail - Contega solido exo tape for window and door to fabric junction

Preparation for external wall insulation - airtightness detail - Contega solido exo tape for window and door to fabric junction

21Preparation for external wall insulation - airtightness detail - pro clima contega solido exo tape installed behind wood fibre insulation to window frame and fabric junctionPreparation for external wall insulation - airtightness detail - pro clima contega solido exo tape installed behind wood fibre insulation to window frame and fabric junction

Preparation for external wall insulation - airtightness detail - pro clima contega solido exo tape installed behind wood fibre insulation to window frame and fabric junction

22External wall insulation - Steico wood fibre insulation board goes onto the walls, with xps footing insulation below DPC levelExternal wall insulation - Steico wood fibre insulation board goes onto the walls, with xps footing insulation below DPC level

External wall insulation - Steico wood fibre insulation board goes onto the walls, with xps footing insulation below DPC level

23External wall insulation detail - 20mm wood fibre insulation board is installed to window reveal to remove thermal bridge at windowExternal wall insulation detail - 20mm wood fibre insulation board is installed to window reveal to remove thermal bridge at window

External wall insulation detail - 20mm wood fibre insulation board is installed to window reveal to remove thermal bridge at window

24External wall insulation with Steico wood fibre boards at the frontExternal wall insulation with Steico wood fibre boards at the front

External wall insulation with Steico wood fibre boards at the front

25External wall insulation with Steico wood fibre boards on the side wallExternal wall insulation with Steico wood fibre boards on the side wall

External wall insulation with Steico wood fibre boards on the side wall

26External wall insulation with steico wood fibre on the rear extension wallsExternal wall insulation with steico wood fibre on the rear extension walls

External wall insulation with steico wood fibre on the rear extension walls

27External wall insulation works with woodfibre insulation - different levels meet and footing xps insulation with telescopic subfloor ventilationExternal wall insulation works with woodfibre insulation - different levels meet and footing xps insulation with telescopic subfloor ventilation

External wall insulation works with woodfibre insulation - different levels meet and footing xps insulation with telescopic subfloor ventilation

28Installation of Steico wood fibre boards and plinth insulation on bay wallInstallation of Steico wood fibre boards and plinth insulation on bay wall

Installation of Steico wood fibre boards and plinth insulation on bay wall

29Installation of Steico wood fibre boards on bay wallInstallation of Steico wood fibre boards on bay wall

Installation of Steico wood fibre boards on bay wall

30Installation of plinth insulation boards below wood fibre boards, below dpc levelInstallation of plinth insulation boards below wood fibre boards, below dpc level

Installation of plinth insulation boards below wood fibre boards, below dpc level

31External wall insulation detailing under eavesExternal wall insulation detailing under eaves

External wall insulation detailing under eaves

32External wall insulation, woodfibre with lime basecoatExternal wall insulation, woodfibre with lime basecoat

External wall insulation, woodfibre with lime basecoat

33Plinth insulation with stepping up to entrance, different insulation levels, subfloor ventilation, lime base coat installed over wood fibre boardsPlinth insulation with stepping up to entrance, different insulation levels, subfloor ventilation, lime base coat installed over wood fibre boards

Plinth insulation with stepping up to entrance, different insulation levels, subfloor ventilation, lime base coat installed over wood fibre boards

34Vapour permeable basecoat applied to wood fibre boardsVapour permeable basecoat applied to wood fibre boards

Vapour permeable basecoat applied to wood fibre boards

35Scaffolding for insulating front elevationScaffolding for insulating front elevation

Scaffolding for insulating front elevation

36Installation of plinth insulation boards - under bay windowsInstallation of plinth insulation boards - under bay windows

Installation of plinth insulation boards - under bay windows

37External wall insulation with wood fibre boards and breathable silicone render finish - front bay windowExternal wall insulation with wood fibre boards and breathable silicone render finish - front bay window

External wall insulation with wood fibre boards and breathable silicone render finish - front bay window

38External wall insulation completed and timber features repainted for upper front bay windows and eavesExternal wall insulation completed and timber features repainted for upper front bay windows and eaves

External wall insulation completed and timber features repainted for upper front bay windows and eaves

39External wall insulation with wood fibre boards and breathable silicone render finish - front bay windowExternal wall insulation with wood fibre boards and breathable silicone render finish - front bay window

External wall insulation with wood fibre boards and breathable silicone render finish - front bay window

40External wall insulation with wood fibre boards and breathable silicone render finish - front bay windowExternal wall insulation with wood fibre boards and breathable silicone render finish - front bay window

External wall insulation with wood fibre boards and breathable silicone render finish - front bay window

41Detailing - external wall insulation with downpipes adjusted to new wall levelDetailing - external wall insulation with downpipes adjusted to new wall level

Detailing - external wall insulation with downpipes adjusted to new wall level

42Detailing - external wall insulation with downpipes and porch roof refittedDetailing - external wall insulation with downpipes and porch roof refitted

Detailing - external wall insulation with downpipes and porch roof refitted

43External wall insulation - front elevation is completedExternal wall insulation - front elevation is completed

External wall insulation - front elevation is completed

44External wall insulation completed on upper front bay windowsExternal wall insulation completed on upper front bay windows

External wall insulation completed on upper front bay windows

45External wall insulation completed, window reveal, soffit and waste pipes adjustedExternal wall insulation completed, window reveal, soffit and waste pipes adjusted

External wall insulation completed, window reveal, soffit and waste pipes adjusted

46External wall insulation with wood fibre boards and breathable silicone render finish - completed on side elevationExternal wall insulation with wood fibre boards and breathable silicone render finish - completed on side elevation

External wall insulation with wood fibre boards and breathable silicone render finish - completed on side elevation

47External wall insulation with wood fibre boards and breathable silicone render finish - completed on rear elevationExternal wall insulation with wood fibre boards and breathable silicone render finish - completed on rear elevation

External wall insulation with wood fibre boards and breathable silicone render finish - completed on rear elevation

48External wall insulation with wood fibre boards, silicone render finish and black mosaic plinth insulation - completed on front elevation entrance sideExternal wall insulation with wood fibre boards, silicone render finish and black mosaic plinth insulation - completed on front elevation entrance side

External wall insulation with wood fibre boards, silicone render finish and black mosaic plinth insulation - completed on front elevation entrance side

49Plinth insulation with mosaic renderPlinth insulation with mosaic render

Plinth insulation with mosaic render

50External wall insulation with wood fibre boards, silicone render finish and black mosaic plinth insulation - frontExternal wall insulation with wood fibre boards, silicone render finish and black mosaic plinth insulation - front

External wall insulation with wood fibre boards, silicone render finish and black mosaic plinth insulation - front

51Roof insulation with Gutex thermoflex flexible wood fibre insulation battsRoof insulation with Gutex thermoflex flexible wood fibre insulation batts

Roof insulation with Gutex thermoflex flexible wood fibre insulation batts

52Roof insulation with Gutex thermoflex wood fibre insulation batts from aboveRoof insulation with Gutex thermoflex wood fibre insulation batts from above

Roof insulation with Gutex thermoflex wood fibre insulation batts from above

53Roof insulation with Gutex woodfibre sarking board on the top of roof rafters and flexible insulationRoof insulation with Gutex woodfibre sarking board on the top of roof rafters and flexible insulation

Roof insulation with Gutex woodfibre sarking board on the top of roof rafters and flexible insulation

54Roof insulation - Pro Clima Solitex Plus connect and counter battens installed to keep ventilationRoof insulation - Pro Clima Solitex Plus connect and counter battens installed to keep ventilation

Roof insulation - Pro Clima Solitex Plus connect and counter battens installed to keep ventilation

55Roof insulation and rebuild Pro Clima Solitex Plus membrane and counterbattens installed to roof insulated with gutex wood fibreRoof insulation and rebuild Pro Clima Solitex Plus membrane and counterbattens installed to roof insulated with gutex wood fibre

Roof insulation and rebuild Pro Clima Solitex Plus membrane and counterbattens installed to roof insulated with gutex wood fibre

56Roof insulated with Gutex wood fibre insulation and Pro Clima Solitex Plus membrane used below battensRoof insulated with Gutex wood fibre insulation and Pro Clima Solitex Plus membrane used below battens

Roof insulated with Gutex wood fibre insulation and Pro Clima Solitex Plus membrane used below battens

57Roof insulation - detail - building upstand for ventilationRoof insulation - detail - building upstand for ventilation

Roof insulation - detail - building upstand for ventilation

58Roof insulation - ventilation detail - upstand with insect meshRoof insulation - ventilation detail - upstand with insect mesh

Roof insulation - ventilation detail - upstand with insect mesh

59Roof insulation covered with breathable membrane, ventilation with counterbattens, battens and roof tilesRoof insulation covered with breathable membrane, ventilation with counterbattens, battens and roof tiles

Roof insulation covered with breathable membrane, ventilation with counterbattens, battens and roof tiles

60Roof tiled, joins insulated main rear elevation with ventilation upstandRoof tiled, joins insulated main rear elevation with ventilation upstand

Roof tiled, joins insulated main rear elevation with ventilation upstand

61Internal refurbishment after insulation works, joinery, steps installed, timber floor sandedInternal refurbishment after insulation works, joinery, steps installed, timber floor sanded

Internal refurbishment after insulation works, joinery, steps installed, timber floor sanded

62Internal renovation, building stepsInternal renovation, building steps

Internal renovation, building steps

63Internal renovation, reclaimed redwood floor installedInternal renovation, reclaimed redwood floor installed

Internal renovation, reclaimed redwood floor installed

64Reclaimed redwood floor installationReclaimed redwood floor installation

Reclaimed redwood floor installation

65Internal renovation after floor insulation, reclaimed floorboard oiled with Osmo oilInternal renovation after floor insulation, reclaimed floorboard oiled with Osmo oil

Internal renovation after floor insulation, reclaimed floorboard oiled with Osmo oil

66Banister installed and floor oiledBanister installed and floor oiled

Banister installed and floor oiled

67Floor sanded and oiled with Osmo wax and kitchen installedFloor sanded and oiled with Osmo wax and kitchen installed

Floor sanded and oiled with Osmo wax and kitchen installed

Is your house like this one?

If you have a 1930s house with solid or poorly filled walls, a cold suspended floor and a heat pump on the wish list, this is the order to do it in.