Theis Services IncHVAC contractor in Tiffin, OH
Theis Services Inc is an HVAC contractor at 4683 OH-100, Tiffin, OH 44883, ranked #7 of 52 HVAC contractors in Tiffin and rated 4.8 from 5 Google reviews.
Tiffin, OHUpdated 0 paid placements in any rankingHow we rank
Key facts
| Address | 4683 OH-100, Tiffin, OH 44883Get directions |
|---|---|
| Phone | (419) 447-8918 |
| Website | theisservices.com |
| Google rating | 4.8 from 5 Google reviews |
Service area
Serves Tiffin and 7 towns within 25 miles: Fostoria, Upper Sandusky, Clyde, Bucyrus, Fremont, Willard and Bellevue.
Based in Tiffin, OHView on map
Typical heating and cooling prices
| Job | Low | Typical | High |
|---|---|---|---|
| AC replacementPer system, installed (unit plus labor); typical range of customer-reported jobs. US national range | $3,887 | $5,978 | $8,073 |
| Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range | $2,823 | $4,814 | $6,896 |
Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.
Compare nearby HVAC contractors
| Business | Rank | CR Score | Google rating | License verified | Saturday | Sunday | Distance away |
|---|---|---|---|---|---|---|---|
| Theis Services Inc (this business) | — | 82 | 4.8 (5) | — | — | — | |
| Greene's Plumbing Heating & Electrical | #5 | 85 | 5.0 (200) | — | No | No | 7.5 mi |
| Tiffin Deluxe Services Inc | #8 | 81 | 4.7 (116) | — | No | No | 4.7 mi |
Questions about Theis Services Inc
How is Theis Services Inc ranked in Tiffin?
Theis Services Inc is ranked #7 of 52 HVAC contractors in Tiffin by CR Score, with 82 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity and profile completeness. No business can pay to change its rank.
What areas does Theis Services Inc serve?
Serves Tiffin and 7 towns within 25 miles: Fostoria, Upper Sandusky, Clyde, Bucyrus, Fremont, Willard and Bellevue. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.
What do Google reviews say about Theis Services Inc?
Theis Services Inc has a rating of 4.8 from 5 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.
How do I contact Theis Services Inc?
Call Theis Services Inc on (419) 447-8918. The business is at 4683 OH-100, Tiffin, OH 44883. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.
Own Theis Services Inc? Claim this profile.
Claiming is free. Correct your hours, trades and service area. The CR Score is recalculated from corrected data; payment never changes it.