Knowify in New York offers their construction management software solution to small household services companies (e.g. plumbing, HVAC, painters, etc.) and features project management type capabilities, along with integrations with popular services (e.g. Quickbooks).
Sage Estimating was initially created for the construction industry and many of its current users use it to estimate buildings, but it has adapted quite well for the oil and gas industry. If the user is willing to invest the time and energy to develop and maintain their database, I can see it working for any industry. It is very easy to adjust and adapt the database as estimating methods and project designs change. As an example, our accounting department sometimes changes the way projects are reporting in our accounting software. Because I can go through our 9000 line item database in a couple of days, I am always ahead of the curve and can report my estimates in the format they require.
The program has a fairly antiquated user interface such that someone working in it may not feel like they are working with advanced software.
Sage Estimating has absolutely no remote access capability outside running it in a Citrix/RDP environment so users have to be using a fat/full client vs. any hopes of access on a mobile device.
Sage's support of Estimating is adequate though frankly we rarely need it. Outside of more complex operations such as upgrades and installation problems the program itself is so straightforward that we do not usually have any "issues" and questions that are more about usability can easily be answered in online forums. We trust Sage's capability to answer these questions if needed but rarely use it.
Knowify does job costing which HouseCall Pro does not, it syncs with QuickBooks a little better than HouseCall Pro but does not allow our technicians to invoice from the field which is crucial.