Marcus arrived on time, he was very professional and personable. He knew his job, spent a lot of time checking all the registers before he started up the vacuum etc. Afterwards he explained again what he did, showed me photos of what he had found and suggested 3 other items that he felt needed to be done. He explained the extra cost along with 2 of the items had $10 off coupons, also advised me that I was eligible for a senior discount. I chose the items that he suggested and he subsequently performed these items. He cleaned up very well after he was completed. I was extremely pleased with the job and he definitely deserves 5 stars. I will definitely recommend Safety King to my friends and relatives and will advise them to ask for Marcus. It is evening now and I can notice that my house is evenly heated, there is no fluctuation in the heat in the different rooms. GOOD JOB MARCUS