2023 Retrofit Quote

My guesstimate is

ext insulation 35-40k

air to water pump - 16k

solar - 12k

mech ventilation - 4.5k

Windows/doors - 20k

attic insulation -3k

90k - grants (approx 17k) = 73k

so how are they coming up with 134k?

From you figures (which you would imagine are reasonable), their pricing strategy would appear to be to take the after grant price and double it plus swallow up the grant too.

When I enquired and got a quote last year i found:

1. The quote was outragous fro the One Stop Shops. IIRC the project management charge alone on my quote was 8k.
2. They just really put you in touch with a builder and process your grants up front.
3. It was totally inflexible if you wanted additional non-grant work done at the same time (i.e. extension).
4. I was offered the services directly from the company behind the OOS quote when I said I was not proceeding.

In summary, at time of enquiry it had not been thought through and it was really SEAI just transfering all the admin externally, and letting the providers quote as they please.

I will pay now for the works upfront, get the certificates, and submit myself. Additional effort maybe but I feel it gives me better control. Who's to say the OOS effort would be easier anyway!

My opinion is OOS is for people who do not have the money upfront to do the work and then claim afterwords. It is more targeted at people who want to upgrade but do not have the finances to cover the work upfront. The OOS scheme will allow you get the grants before the work commences so you only ever pay the difference.

78k for ext insulation looks extremely steep…would have thought 45k max…..

Air tightness or more particularly, the lack of it.

OK, Well yes, more difficult for sure but not impossible. I think it depends on how deep a retrofit may be that will determine how difficult it would be to do. I've a (concrete block 2 leaves) dormer bungalow and I intend on doing a retrofit so I was wondering if there was something I hadnt considered. ,I've done a U value calculation and I wouldnt have enough rafter depth for insulation value I want. I'm thinking I either need aerogel material or possibly remove tiles/felt, beef up the rafter, integrate airtightlayer, insulate and fit a breathable membrane and tiles. Not sure yet where to get an appropriate structural engineer to ensure it will be structurally sound and to ensure a design plan is followed,or even how much it would cost,but Id plan to integrate airtightness if that work goes ahead. I've been told a doc called SR54 recommends cavity insulation if doing EWI,but calculating temps doesn't suggest there would be a risk,Id get it done for other reasons,potential for convection currents in the space.

Regarding EWI I'm thinking of getting certified to install a specific system,not sure how it works out to get grants if doing own house or initial jobs elsewhere,did a course in Ireland,it's very much imo attention to detail. Given the costs, I think it could be cost effective for a person to do if they have certain skills,or hire individual trades to do certain taks. Id do base coats over EWI, but Id prefer get a plasterer to do the finish.

One concern I have is insulated (over) cills don't seem to integrate into an EWI system/windows like existing cills. They appear to be butted up to Windows with expanding foam tape, I'm not convinced this will be effective for draining driven rain in the longterm, Id rather a replacement new/performance window fitted in a traditional manner on top of an insulated cill? Any opinions or links to insulated cills or fitment to permit drainage of water?

If anyone can point me to the right profession for structural roof design, please do.

regarding the OP, I understand there are different types of airtight membranes I plan to do my own,but some appear to diffuse water vapour back into a room rather than just repel it,but I think calculated EWI and MVHR would eliminate water vapour related problems, the structure materials would point to the type of insulation and airtightness.

in

concrete

What’s included in the quote..ext insulation, air to water pump, new windows?

Get a plasterer to insulate the walls and insulation guy to do the attic. Leave the grants to the eejits that convince themselves they saved 20k!

Initial reaction would be thats very high but unless you can give a rough breakdown of the costs, size of house etc its hard to tell.

Rough rule of thumb was 1500 a square metre for retrofit but that was a while ago so not sure has it gone up or down. I would expect it come down.

Can you provide a rough breakdown of the costs?

Is it via a one stop shop or an independent contractor?

Have you only one quote or multiple?

Hi,

just wondering if anyone has got any recent quotes for work retrofit or extensions.

Im currently finalising plans for renovation of existing 1960’s house in south county Dublin but seriously worried it will blow the budget..

renovation of 4 bed semi circa 120sq metre, Looking at full renovation new windows doors, attic insulation, external wrap, air to water under floor heating full rewire and replumb etc

demolish garage build 2 story extension to front 40sq metre

kitchen extension out back 30sq metre single story extension

any idea of what ballpark will be?

Yeah that is my fear rough calculations I’m going with are

70sq metres by 3k =210k

120sq metres by 1.5k = 180k

total 390-400k

that’s over my budget so will need to pair things back I reckon before planning. My view is get structure and builders finish then complete out what we can with the rest of the budget but wife will have a different opinion 😱 Budget is all cash which may help on the finish side of things I hope.

yeah from what I can see there is still a lot of demand for work so while that exists it will keep prices high. The other side is labour costs are still a big piece of the quote and that is getting more expensive.

What are the quotes coming in at per sq metre for the retrofit and new build. I'm waiting for a few quotes back but hoping its under 3k for new build and 1500 for retrofit.

regards

Kev

€350k in Jan, €390k in Jul, €370k in Aug from different builders against the same BoQ. Waiting on 2 other to submit quotes in next 2 weeks.

Hi Folks,

Quote back for the following

1). knock kitchen into dining room and add 30sqm single story extension

2). knock garage and build 2 story extension for downstairs bedroom with en-suite and the same upstairs

3). retrofit to 120sqm house

4). rewire and replumb

Plumbing cost below is upgrade Gas boiler and only future proof for Heat pump and solar.

What are peoples views as it blew up my expectation of  3k a sq metre for new build and 1500 for retrofit

Another builder just came back with 400k but no bill of quantities..

there are a lot of PC sums in that for near half a mil, no? costs though, they are out of control. how can people afford on top of another half a mil (minimum) for SCD